[sugarmamma]

I'm sure since the OP is in Mexico, procedures are different. I too would be wary of a referral that is "in the family".
Interested to see what your regular vet has to say.

Good luck and I'm so happy you took this little one in. If she really is overweight you can look into better foods or home cooking to improve her body score and to help her knee situation, whatever that may be.