A true service animal is protected by law. Have an attorney versed in the ADA write a sharp letter to whomever ordered your dog out.

It ceased to be your dog when you and your ex divided your property. His dying does not make his dog yours now.

Windows which don't lock are a security issue, particularly on a ground floor. Perhaps a letter from an attorney will get action if nothing else does.

"...her face managed to slip in to the yard..." Meaning you did not control your dog, and it trespassed. You have no claim.

Probably, but more facts are needed. Document all your costs.

Yes. Pets cause more damage than adults generally do, particularly to carpet and other flooring.

If you wish to keep the dog, report it as abandoned to animal control, and that you are caring for the dog. Document all communications with the...

Why have you not notified animal control? Document the time, date, and duration of the barking, and the fact that the house is no longer occupied.

"I bought a female husky from a breeder in Las Vegas, he never showed me his breeding license." Or anything else. "...he told me he would...

Stop broadcasting your fiance's irresponsible act. He needs a criminal defense attorney, and it strains credulity that he does not already have...