Now stranger things have happened, but if she took you to small claims court over it, she probably wouldn't win. If it was me I would tell any relative to stick it after 2 years. I would figure out a boarding charge (standard is around $35.00 per day) for each day you have had her and all vet bills, food and equipment wtc. That is just me and it depends on your relationship I would say no way does she have any rights to this dog your mom left and didn't make any arrangements with you. You have done your best for this dog and and it has been 2 years not 2 months. I am sure your mother if she was to have any rights to this dog could of and should of contacted you and paid for the care of this dog. She didn't do her part and like you said this dog is now well looked after by you tell your mom she can visit, it might be nice to see her since it has been 2 years but the dog has a home with you. the dogs were abandoned rather a family member or someone else what if you chose to take them to a shelter they would not give a dog back after 2 years if anyhting she should pay for all vet visits for all the dogs including the one put to sleep and as far as charging a fee for watching depending on