These are questions for your lawyer, and only your lawyer.

Yes it can. For your own good Shut Up and Lawyer up. Quit talking on the Internet or to anyone (especially cops) and get a lawyer.

You will have to sue her and convince a judge it wasn't a gift.

Can you? Yes. Should you? No. If he gets a large judgment against you, don't blame your "lawyer."

Most judges will not let pro se litigants testify. You need a lawyer yesterday. We can't teach you how to practice law.

Shut up and lawyer up. Make no statements. Get a lawyer.

you haven no damages to sue for.......

you need a real estate lawyer..................

Do you know how to authenticate evidence in court? Is it hearsay? Trial work is stressful enough. When it is your case, it is nearly impossible.

That is up to the judge to decide, based on all the facts (that we don't have.)