The written contract, which you apparently did not read before signing, controls.

This belongs in lawsuits and disputes - moving accordingly. Pulling up survey markers is likely illegal. Cameras are your friend - document his...

It clearly wasn't a warning. Retain counsel.

A letter from an actual treating physician, not some website, should suffice. The LL is not entitled to any medical information protected under HIPAA.

IF your dog is a legitimate ESA, you have the letter from your doctor and have provided the LL with a copy of it. If that is the case, a letter...

Report threats to the police; file a replevin action to recover your cats.

He might have a claim if the event did not occur in that court's venue. Mere inconvenience will likely not suffice.

How is "uncle Jesse public works" remotely relevant, or even coherent? Read the BLM rules for the parcel in question.

This is primarily a lease issue; moving to landlord/tenant. Your written, signed lease controls. IF the cat is a legitimate ESA, and the LL has...

IF he actually files a complaint, it will be a "he said/she said" situation. Document all his threats.