File a found dog notice with your animal control officer, to start the paper trail needed for ownership.

A dog at large is a civil infraction, for which a fine is imposed. Ignoring the citation carries other consequences - which were almost...

Moving to landlord/tenant, which is more appropriate. Do you have an executed lease? If so, it controls.

"I gave my ex boyfriend an xbox for Christmas..." At which point it became his upon acceptance. It remains his now.

Notify your insurance carrier that it is being billed for services not provided.

If you can get the witness to testify at your replevin hearing, you would have evidence of the contract.

If you are a party to a lawsuit, you would do well to have counsel. Use the Avvo search tool and/or your county bar association.

Moving to landlord/tenant. Get a note from your doctor saying you need AC to preclude your predisposition to heat stroke.

You sue him for breach of contract, if not fraud. Small claims court would be the likely venue.

You gave your supposed "support animal" away. It is no longer yours. It suggests your even getting one was a questionable decision.