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verified client RAVE reviews


Percy Batman emily.jpg

Christina is a gifted behaviorist, we are deeply grateful

Percy- Dachshund
Aggression to handling 

Christina is a gifted behaviorist. She is highly skilled at understanding and interpreting dog behavior and designing personalized and creative solutions for canine behavioral issues that often cause dog owners to give up on their animals. Christina worked patiently and persistently with me and my family to help us understand the source of our dog's biting -handling causing pain, leading him to respond in aggression, and to change our necessary handling into and out of his wheelchair into a bonding, calm and pleasant experience! We also learned to circumvent triggers that traditionally would cause him anxiety and frustration. She is a natural teacher to pet parents, making sure her clients understand their dog's behaviors and how pet parents often unknowingly reinforce negative habits in their pets. We are deeply grateful for the compassionate care and wisdom she so generously shared with us and the lessons we learned. The only one more grateful is our Percy! ~ Bonnie Olson

Christina came in with all of her patience and dedication, we would not have been able to keep him had she not been so committed to us and our Pupper!

Harley- Silky Terrier
People Aggression, Reactive Aggression, Anxiety 

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Christina helped us with a pure bred Silky Terrier. He had many issues due to so much inbreeding. His behavior was so off the wall the Vets wanted to get him on Prozac. The boarding place banned us from bringing him back as he would bark constantly at everyone and everything, he would try to bite everyone and everything as well. Christina came in with all of her patience and dedication and helped us to learn how to manage and train Harley.  After training, we tried other boarding places and never had a problem!

Harley is now 13 years old and we would not have been able to keep him had she not been so committed to us and our Pupper. (Our children were very small at the time and we were afraid for their safety).  We now added another puppy to the family and are contacting her so she can help with the transition process as our other dogs are 13, and 7 years old.  As soon as I saw a problem with the transition I knew exactly where to turn.  Thank you Christina for your commitment to families and their puppers! ~ Lucy Bayter

Boh - Coohound Mix, Stranger Aggression,

"We were at the end of our rope, but Christina stepped in and showed us what a charismatic and wonderful dog we had . Adopting her methods has improved our relationship with Boh and has allowed him to shine, cannot thank Christina enough"

Boh, Coonhound
Stranger Aggression, Separation Anxiety,

"I cannot say enough about Christina's services. Her expertise and professionalism combined with her love of dogs has had a profound impact on the way we interact with our dog, a Black and Tan Coonhound named Boh. With such a large dog, it was crucial that he be on his best behavior. Anxiety had started to form after several moves and other types of upheaval and Boh developed separation anxiety and stranger aggression. After having tried other trainers and methods we were at the end of our rope but Christina stepped in and showed us what a charismatic and wonderful dog we had under our noses the entire time. Adopting her methods has improved our relationship with Boh and has allowed him to shine. I cannot thank Christina enough nor can I recommend her highly enough. You owe it to yourself and your dog to enroll with Christina." ~ Jeremy Wicks

"I never saw anyone work so dramatically,
so effectively, so fast."

Cappy, Bichon Frise
Touch Aggression, Fear Aggression, Stimuli and People Fear
due to years prior isolation, Fear of Strangers, Rehabilitation

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"Christina Shusterich is an amazing behaviorist. The welcome home rescue dog session Christina had with our new dog Cappy was way beyond our expectations. I have worked with a number of trainers over the years but never saw anyone work so dramatically, so effectively, so fast. We have been seeing amazing changes in Cappy ever since she left yesterday — he is less fearful, more confident, more engaged, more animated… happier! She was able to keep Cappy from exhibiting any of the aggressive signs of fear of strangers that we began seeing in him..We think Christina is a terrific find." ~ Zoe Stolbun, NYC

Godiva and Charlie - Whippet Mix_Cocker

"Double Miracle! It could not have happened without Christina.  Christina holds herself to the highest of standards and is always professional. I highly recommend her!"

Godiva & Charlie
Whippet & Cocker Spaniel
Aggression to Owner, Leash Aggression, Touch Aggression, Dog Aggression, Dog to Dog Acclimation, Obedience, Rehabilitation, Anxiety,

"Double Miracle! Last year I adopted a 3 year old whippet mix named Godiva, whom I nicknamed Diva. She was an anxious insecure dog who had been abused. She was very affectionate, but would growl if I petted her, and growled if I didn’t. She lunged at strangers and barked at passersby. She would bark, growl, and bare teeth at other dogs. I was stumped by her behavior. Christina taught me calming exercises and ways to pet her without triggering her. She became a more secure, calmer dog. I adopted a second dog, a Spaniel mix named Charlie. He was totally undisciplined, not housebroken, impulsive and very stubborn. But he was also cute, smart and eager to please, so I took a chance. There ensued an intense rivalry between Diva and Charlie. Diva would deposit her 50 lb. self on my lap and glare at Charlie. Charlie fired back by peeing on my leg. I was at the end of my rope! A friend suggested an exorcism. I had a better idea. I called Christina. Christina came promptly and determined that the root of the conflict was not so much Diva’s dog aggression, but Charlie’s lack of doggie manners and dominant personality. He would jump on Diva and take treats out of her mouth. Diva was attempting to teach him manners by growling, but he was not getting the message. Christina devised an intense training program to teach Charlie doggie manners and establish Diva as “lead dog.” I followed her instructions to the letter. Then came the day we put both dogs together. They sniffed each other, circling ,and proceeded to lie down together, completely relaxed! Now they are a pleasure to walk together. Diva taught Charlie how to lift a leg on walks. He is completely housebroken and follows her lead. Diva is calmer and more secure in her role as of “big sister.” Charlie has re-awakened Diva’s playful nature and has become less dominant. It could not have happened without Christina. Christina holds herself to the highest of standards and is always professional. I highly recommend her!" ~ Maria McLaren, Queens, N.Y.

“Christina’s brilliant insights and upbeat attitude,
can’t recommend enough.”

Audrey, Pit Bull
Leash Aggression, Anxiety, Rehabilitation


"Not a day goes by when my husband, pup and I don’t appreciate all the incredible things learned from Christina. We adopted an incredibly sweet, yet reactive and abused dog about a year ago from the Animal Care and Control Center in nyc.  She is incredibly strong, and we felt like we were walking out in public with an animal we weren’t sure we could safely control, yet we cared so much for her and were committed to her. Christina to the rescue. Her intelligence, sense of humor, up-beat attitude and brilliant insights helped us understand our dog and provide her with what she needs to be happy and healthy and safe. Christina also clearly cares about our dog.  What a gift to those of us in this challenging situation.  I can’t recommend her enough." ~ Laura Bontrager

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“Christina Performs Miracles!
Went to 4 trainers that failed miserably.”

Korben, Ridgeback Mix
Leash Aggression, Rehabilitation

“Christina performs miracles! I adopted a heavily abused dog who had a number of issues to work through. I went to 4 different trainers who all used the standard alpha method, they all failed miserably. One even told me that my dog needs a muzzle and a shock collar. I felt beaten down thought there was no hope and then someone recommended Christina and NY Clever K9.  At first I was not a believer but over time she gave my dog and I the tools needed to be successful and my dog overcame all of his issues. He is a changed dog and I would recommend her to anyone having any issues with their dog no matter how severe. Seriously, look no further! Christina performs miracles and I can not tell you how many compliments I get on how well behaved my dog is. Thank you!” ~ Leigh Stadler

“No matter how desperate you feel, don’t give up! Christina worked miracles!”
Fiona, Pitbull
Leash Aggression, Dog Aggression


"No matter how bad you think your dog is, or how desperate you feel, don’t give up – call Christina!! My husband and I thought we were on a runaway train, but Christina showed us that wasn’t true. She taught us that anything can be solved with patience, positive reinforcement and awareness. We could not be more grateful for her (our dog agrees!!). Our rescue dog, Fiona, came to us terrified, distrusting, and extremely canine/animal aggressive. On every outing, her head was on a swivel. The final straw – and when we thought we might have to give up Fiona – was when she bit a puppy in our building. After that, we called Christina, and it is the best decision we’d ever made. Christina worked miracles. She helped Fiona go from a safety liability to a calmer, more confident dog who is able to walk without so much as a second glance at other pups (she doesn’t even care about other dogs in close proximity in the vet’s waiting room!). We feel that that the work she’s done has saved Fiona’s life. Throughout the process, Christina has helped my husband and I as much as she did Fiona. She is a phenomenal and patient teacher, and has instilled in us the confidence and skill set to continue Fiona’s rehabilitation on our own (we are reassured to know that she’s merely a text or call away if we need her, of course). We cannot thank her enough!!" ~ Avery Schlicher, NYC

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"Christina has made our lives with this lovable
furball so much better."

Coby, Havenese
Protective Aggression, Aggression to Owner

"Christina helped us immensely with our dog Coby who has some serious behavior/aggression issues. She has made our lives with this lovable furball so much better. She taught us how to properly handle this little guy which has taken so much stress off of us. Until Christina came along we didn’t know what to do with him. Now with her training and guidance we have a clear plan to help this little guy as well as us. Christina is an awesome animal behaviorist… Thank you so much…" ~ Russell Martilla, Queens, NY

"LOVE HER! Peanut now shows ZERO food aggression"


Peanut, Beagle 

 Food Aggression, Obedience, Resource Guarding 

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"LOVE HER! We thought training would be easy but soon learned we had our hands full with Peanut. Our 4 month old puppy had tons of energy and showed signs of food aggression.  We researched a dog trainer/behaviorist and came across Christina Shusterich.Everything we read was A+ so we called and set up an appointment. We were not disappointed. Peanut took to her immediately, and with her friendly demeanor, we did as well. Using her techniques, Peanut quickly learned commands and now shows ZERO food aggression. I recommend Christina’s training for anyone who needs to train their dog.”

~ Arleen, Norbert Velazquez,Queens, NY

Moxie - Chihuahua Min Pin, Anxiety .jpg

"I had a lot of fear based aggression issues. Christina translated my behavior and taught my family how to handle my needs in a very loving and gentle way and that any behavioral issue can be resolved with a firm but compassionate hand. Christina is a dog’s best friend.
Two paws up!”

Moxie, Chihuahua/Min Pin
Fear Aggression to Owner, Strangers and Touch, Leash Aggression,
Fear on Walks, Anxiety, Rehabilitation

“My name is Moxie. I am a Chihuahua Miniature Pinscher mix. That’s a lot of doggy personality for someone my size. I was recently adopted by two amazing women and their adorable young boys (ages 8 and 10). I am very fortunate to live in a very loving home, but sometimes my family thinks of me more as a toy and not a dog. I know I’m cute, but there’s a limit to how much I can take. You see, given my size and my background (rescued from Animal Care and Control), I have lots of fear based aggression. It wasn’t until Christina came into our lives that anyone understood my feelings. Christina helped translate my behavior. Christina came in and taught my family how to handle my needs in a very loving and gentle way. Her methods not only showed my humans how to treat me but also reassured them that any behavioral issues could be easily corrected with a firm but compassionate hand, repetition, rewards and, of course, patience. Would you believe I used to bark incessantly when our next door neighbor came home from work? Now, I barely raise an eyebrow when he comes home. I‘m so much calmer when we go for walks now. I was a nervous wreck out there with all the sights and sounds of the city coming at me. Christina showed my humans how to manage my walks and navigate the sidewalks. It’s not easy being me but with Christina on my side, it’s so much better than it was. Some would say the dog is man’s best friend, but I would say, Christina is the dog’s best friend. Two paws up for Christina!” ~ Moxie Mintz Killmer – with input from Rachel and Jenni (my humans), NYC

" I was really impressed by Christina’s understanding of dogs
as well as owners. We really enjoyed working with her and how fast she could get them to learn, she showed us our guys have far greater potential than we thought possible.
Thank you Christina you have made a big difference
in making our lives more rewarding!"

Sky & Fen, Silky Terriers
Dog Aggression, Dominance Aggression, Touch Aggression, Aggression to Owner

Sky and Fen - Silky Terriers, Dominance

“Christina really helped us with our dogs. The older dog Sky was becoming increasingly more aggressive towards our younger dog Fen as well as towards myself. Christina showed us a way to incorporate training techniques into our everyday lives that worked for all of us. I was really impressed by Christina’s understanding of dogs as well as owners. We really enjoyed working with her and appreciate all she has done to help us better understand Sky and Fen so we can all live together in harmony. It was a true learning experience to see her work and how fast she could get them to learn, she showed us our guys have far greater potential than we thought possible. Thank you Christina you have made a big difference in making our lives more rewarding!” ~ Joel Lasher, NYC

Serengeti - Pitbull Mix, Fear on Walks.j

"Christina saved our dog's life!"

 Serengeti - Pit Bull Mix
 Leash Aggression, Fear on Walks

"Christina Shusterich saved our dog’s life.  We rescued a 70 pound pit mix with massive behavior issues including biting, lunging randomly, pulling on walks and leash aggression.  The leash aggression was so bad that we could spend 10 minutes trying to wrest the leash from his mouth, and would frequently get bitten in the process. Expecting a baby in months, we gave him only a few months to shape up or ship out. Christina was not our first trainer or behaviorist.  We started with Petco (nice people but not prepared for our dog), then a team who put him on the eCollar, and another behaviorist from Upstate. All had helped a little but he was still unpredictable and unmanageable.  I can’t say that the results when we met Christina were instant (although she could instantly handle him!)  But when he and I put into practice the completely manageable lessons that Christina taught us he has transformed from a dog who pulls and bites to a dog capable of walking with me, paying attention and not flipping out on every walk.  Her calming techniques and insights into our dog’s actions were remarkable and effective.  Now, one year and lots of practice later, we completely trust our dog around our newborn. If your dog seems hopeless, there is no Cesar Milan out there – that’s TV magic.  Christina is clearly the path to success and is worth her (somewhat expensive) fee." ~ Richard Altman

“Christina’s skill set includes intellect and instinct, she is also kind, caring and understanding. Have a happier, friendlier much more peaceful dog!”

Mookie, Pekingese/Poodle
Fear Aggression, Protective Aggression


"Christina is a hero! While Christina’s skill set certainly includes intellect and instinct, she is also kind, caring and understanding.  She came into our family home, where we were having the most difficulty with my pekingese – poodle mix, Mookie and started treatment immediately. She was able to quickly diagnose Mookie’s fear-aggressive behavior and formulated a plan for us to relearn and move forward.  She even brought another one of her clients into our house so that we could trigger Mookie’s fear of strangers. This client came for several weeks until Mookie was eating out of her hand! We have been so lucky to have Christina as our teacher and truly have a happier, friendlier, more more peaceful dog because of her dedication to us. If you are serious about doing your homework and helping your dog interact with your family, Christina is the one." ~ Caitlin Tartaro, Queens, NY

Flurry - American Eskimo, Stranger Aggre

“Christina was able to resolve her longstanding fear aggression to people, something that other behaviorists
I’ve seen have not been able to do. The transformation
in Flurry has been amazing!"

Flurry, American Eskimo
Stranger Aggression, Fear Aggression, Rehabilitation

“Christina is the best dog trainer I’ve worked with. She uses only positive reinforcement and helped me train my dog to snap out of her longstanding fear aggression to people, something that other behaviorists I’ve seen have not been able to do. We were severely limited in where we could take Flurry and even avoided having guests over due to her constant barking, following and jumping at them. The transformation in Flurry has been amazing, we recently were able to take her to an indoor barbecue full of people all strangers to her. Not only did she not bark at any of the guests (even when they stood up and walked around!) she was really friendly and even bonded with one guest in particular.We’re thrilled to say that she’s becoming quite the socialite!” ~ Suzanne Flannery, Queens, NY


Rosie, Pit Bull
Leash Aggression, Dog Aggression, Rehabilitation


"AMAZING! Rosie, our rescue pit bull, is a changed dog thanks to Christina Shusterich. In August we adopted Rosie, who was estimated to be 2 1/2 years old. Soon we observed she was severely dog aggressive. Could dog aggression be treated, were pit bulls really dangerous and was she safe to keep, especially with our 17 month old son? We scoured the NYC area for a reputable and very experienced dog behaviorist until we came across Christina..and thank goodness we did! Rosie went from a dog that lurched, lunged and barked at every passing dog (to the extent that we had to walk around cars to avoid dogs on sidewalks)to a dog that could pass a pack of dogs barely noticing. Christina is an incredible behaviorist and completely rehabilitated her by teaching us, Rosie’s owners, how to use positive, reward based training (in carefully planned out stages) to change Rosie’s psychology of other dogs. It was amazing and not something my husband or I thought possible. We also can’t thank Christina enough for educating us on how misunderstood pit bulls are and showing us how wonderful they can be. Rosie is an amazing, affectionate, beautiful dog.”

~ Vail Weymann, NYC

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"We are still amazed, thrilled and very
grateful to Christina!"
Larry, Leavitt Bulldog
Leash Aggression, Fear on Walks, Anxiety

"After 51 years of marriage, 2 children, and 7 dogs, we adopted a 3 month old Leavitt Bulldog. Although loving and lovable, Larry soon showed very unpredictable behavior and difficulty interacting with other dogs. We kept him at home and avoided public places. Several months later, Larry was a strong athletic dog but unpredictable, lunging at other dogs and working himself into a frenzy when outside, making walks frightening and leaving us all feeling overwhelmed. Then we found Christina.  After a hands on evaluation of Larry, she quickly understood the behavioral problems and began educating and training us as well as Larry. Under Christina’s tutelage, Larry’s transformation to a fun companion was rapid, straightforward, and reliable. Walking him very quickly became a pleasure instead of something to dread each day. We are still amazed and thrilled and very grateful to her for her expertise and her palpable love for her students. I would just like others to know how our lives have been changed by her expertise and caring. Another huge “thank you” to Christina!" ~ Joan Stasior, NYC

"Working with Christina was a wonderful experience."

Bailey, Lab Mix
Leash Aggression, Dog Aggression

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“It was very embarrassing for us to have our dog Bailey show aggression to other dogs, especially after moving to a very pet friendly apartment building.  Needless to say, there are dogs everywhere. With Christina’s help Bailey overcame his leash aggression in just a few sessions, he is unconcerned with other dogs, more relaxed and is behaving better every day.  He even had a very friendly encounter with another dog yesterday, they were sniffing each other, wagging tails, it was great!  He also actually listens to us outside!  No more embarrassing days. Working with Christina was a wonderful experience as she made it simple and fun, we highly recommend her!”

~ Valisa, Neal & Bailey, Queens, NY

Teddy - Labrador Retriever, Fear Aggress

“Christina Shusterich changed our world.
We are able to keep our dog Teddy!”

Teddy, Labrador Retriever Mix
Fear Aggression on Walks to People and Dogs, Fear on Walks

“ It is because of her that my husband and I were able to keep our black lab mix Teddy. Teddy was terrified to be on leash in the city and was nearly impossible to control – it took all of my strength to avoid being dragged down the streets of Brooklyn. Even worse, although incredibly loving and friendly anywhere else, he showed signs of aggression toward other dogs and sometimes people when leashed. We went through two trainers before meeting Christina, and had nearly given up hope. But Christina changed everything! She taught him to walk next to us on the leash (something I never thought was possible) and worked with us to change his emotions while on leash. Now, he rarely ever barks at other dogs and never at people. She even helped teach Teddy’s older brother useful commands while teaching Teddy. She is a true expert in her field: smart, kind, encouraging and utterly professional. I would highly recommend Christina to anyone who has a dog with behavior issues, big or small. She gave me faith that any behavior issue can be corrected with the right training and some patience and time. Now that Teddy has “graduated”, we already miss her!” ~ Julie Lauch,

“Without Christina’s help we wouldn’t be able to keep Fergus much longer without something terrible happening. We are forever grateful to Christina for helping our family and Fergus become the loving dog we always knew he could be, his aggression issues have virtually ceased to exist and today Fergus is a happy, well adjusted dog!"

Fergus, Catahoula Mix
Leash Aggression, Dog Aggression, Stranger Aggression

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“We highly recommend Christina Shusterich!  From the very first meeting, she came into our home and pointed out things that were stressful to our beloved dog Fergus, and when we made those changes he became a completely different dog.  He loved to see Christina every time she visited and was very receptive to her positive direction. Before Christina, we were afraid to walk Fergus because of his unpredictable aggression toward other dogs and some humans.  Christina is very intuitive when it comes to aggression issues, and with her positive training techniques his behavior immediately changed. We were very drawn to Christina because of her vast knowledge of Animal Behavior which we feel made such a difference with Fergus. Without Christina’s help we wouldn’t be able to keep Fergus in the environment he was in much longer without something terrible happening. Today, we are now confidently taking Fergus for walks and are forever grateful to Christina for helping our family and for helping Fergus become the loving dog we always knew he could be.  His aggression issues have virtually ceased to exist and today Fergus is a happy, well adjusted dog who “plays well with others”. ~ Alan, Heather, Rubin & Fergus Doorly, Queens, NY

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“Severely bit my wife, Christina's work has been transformative, completely positive change!”

Georgie, Maltese
Aggression, Resource Guarding, Rehabilitation

“My wife and I adopted our beloved Maltese, Georgie, who soon began exhibiting some small signs of aggression. It escalated one morning to the point where Georgie growled at and severely bit my wife in the hand. The bite was bad enough to warrant a hospital visit and some serious re-thinking about Georgie’s place in our household. Our options were limited: either find a new home for this adorable little dog, or find out what the problem was and address it thoroughly and quickly. Christina’s work with Georgie has been transformative for both him and us. She was able to teach us where the aggression was stemming from – resource guarding – and develop a comprehensive course of corrective actions. After behavioral modification we have noticed a completely positive change in Georgie; he shows very little sign of the aggression that greatly worried us and has become a more loving and docile animal. Equally as important – we have learned much about ourselves and how to handle many different types of behavioral issues. None of this would have been achieved without Christina Shusterich’s help and guidance. We highly recommend her services. With much appreciation.” ~ Jamie, John & Georgie Devall, Queens NY

"We initially had some issues, in fact, I think she went to two different families – before coming finally coming to us –
but thanks to a couple of visits from Christina, we were
given the guidance to work through them."

Daisy, Pitbull
Fear Aggression, Stranger Aggression

Daisy - Pitbull, Fear Aggression.jpg



"Dear Freddie, Monica and all the folks at FOF (For Our Friends)-

I am glad to hear that you received the donation. For those of you who don’t remember, my husband and I adopted Daisy about 2 1/2 years ago in 2004. We saw her picture on the Internet and met her at a PetCo Adoption Day. Unfortunately, she had already been  promised to another family – and in fact, I think she went to two different families – before coming finally coming to us around Xmas time.  We initially had some issues – but thanks to a couple of visits from Christina, we were given the guidance to work through them. Daisy still is a bit protective of me and not so comfortable around men, but she has brought such happiness to our life.  She is very energetic and loves to play (her favorite toy is a squeaky ball).  We find she has two speeds – full steam and fast asleep.  Attached are a couple of pictures of her.  You’ll see she’s gone from a skinny 35 pound pup to a 55 pound adolescent (healthy and fit per her last vet visit)! Good luck with your efforts!" ~ Adrienne Mackay / Christina Shusterich Shelter Work Reviews

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"I needed the best. I needed Christina Shusterich."

Eli, Shih-Tzu
Territorial Aggression, Leash Aggression, Aggression to Owner

"You can teach an old dog new tricks! The first time I met Eli, he tried to bite to me. It was love. The little shih tzu had been found wandering the street of Queens right after a blizzard, overgrown and matted, and angry. So angry that Animal Care and Control had him slated for death. Luckily another rescue stepped in and took him and we brought him home a week later. Told that he had a cold and was about four years old, it was soon discovered that he was closer to eight, had chronic, untreated dry-eye that had left him half blind, was arthritic, missing most of his teeth, and infected with ringworm. No wonder he was so angry. After a few months, Eli was calming down, but he still had regular boughts of aggression towards the man of the house, a propensity to territoriality, and terrible leash aggression. I knew I needed a professional. I needed the best. I needed Christina Shusterich. Christina came in, pinpointed the physical and emotional causes of Eli’s behavioral problems and immediately we set to work. Three months of weekly visits taught us a variety of strategies for helping Eli stay positive and happy on leash and in stressful situations. Now he handles his anxiety with aplomb. He is a new dog! Or, to be more accurate, he is an old dog with some new tricks. When I picked him up from his last vet visit I asked how many people he tried to eat and the answer was none! Now if only I could convince all of my neighbors to hire Christina . . . "

~ Regan Schwartz

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