Mark is the founder and president of HandicappedPets.com and the inventor of the Walkin’ Wheels adjustable dog wheelchair. When the Internet was still relatively new, Mark created the website to support caretakers of elderly, disabled and special needs pets, providing them with the products, services, and support they need. He invented the Walkin’ Wheels in response to comments from the community of caretakers that utilize the website. Since then, Mark has fostered a large social media community around the pets who use his products. He is also the founder of the Handicapped Pets Foundation, a 501c3 non-profit dedicated to providing dog wheelchairs to families with financial hardships.