You seem to be the victim of a scam. You may wish to retain counsel versed in business litigation.

Moving to lawsuits and disputes. Your friend can contact animal control and an attorney. You have no standing in this matter.

The time to have gotten help was two months ago. This smells of a scam. A call to the AG's elder protection division may prove useful.

Stop broadcasting the facts of your case on open sites and retain counsel. As you have already been through these charges, you know how to.

Moving to landlord/tenant. Start with the obvious: What does your lease say about pets? The fact you say he "sneaked" in the dog indicates...

Your vet bill was paid. What other damages do you claim?

You gave your dog away. WHY you gave away a supposed service dog is unclear, but allowing someone to rehome it relinquished your ownership.

You would need a canine oncologist to testify that the cancer would have been found if the tests were properly done, but the lab failed to either...

Moving to debt collection, where it belongs. This smacks of a scam.

Interests in land require a signed writing. You seem to have none. That suggests you have no proof of any such agreement, unless you paid by...