How do I file a motion to quash the subpoena, can they make me testify against my fiance?

I don't see a basis for quashing the subpoena, but it looks like your testimony might help him anyway.

Do I have a case? Can the man be liable for all court and attorney fees?

If the seller was private, I doubt there is a federal offense. However, you could bring a claim in small claims court.

Why was I the only one fired when we both made that decision together to close down

In this state, an employer can be unfair as long as he does not discriminate or violate the company's own rules. You have told us nothing that...

Can a mark up fee be charged if it is not specified within the lease and can he still make damage claims outside the 14 days?

The mark up fee is a toss up issue. However, there may be liability for the failure to communicate within 14 days. Consult with an attorney.

What is the best way to handle this situation involving a car accident?

I don't like 2 since, by taking his money, you are at least impliedly waiving your claim against him. Possible fraud.

Can my wedding venue charge me more items that I know I can get for cheaper elsewhere?

Unless the venue defrauded you in some way (which does not appear in your narrative), the contract will probably govern. But it is impossible for...

Will I be able to use my results in order to try and break my lease?

If you can afford it, do it. It is not illegal. When it comes to deciding how to use the results, and what to do about the plumbing/leak...

Can I take additional proof to a judge after a forcible detainer hearing?

Mr. McDowell's response is a good one. File a motion for new trial. An appeal will not address the issue.

Will a judge grant the eviction?

First, never take your legal advice from a property management company. And never rely on oral communications. Go to the hearing and take your...

Consider using a title company. Lease purchase buyers and sellers have used that method.