I definitely would call and report them. Even if they are not your mother's animals she is still responsible for them as they are in her house, her land etc. You can't just sit back and do nothing if your husband is neglecting a bunch of animals. Call and report them. You don't have to give your name, but these animals are depending on you, and from what I've read I highly doubt they are being cared for responsibly. Plus most cities have license laws, and if the dogs haven't been to the vet, he's obviously breaking the law as well. I feel horrible for these animals. This is your chance to do something about it. If nothing is found wrong, then they won't get in trouble. If something is wrong it can be corrected.