I was told he needed to sign a form but is it still needed?

Have you asked your family law attorney this question? Your question doesn't tell us about the form requested, but I can guess what it might be....

Which Government Agency do I place a complaint with, in case the lender does not release the check on their own accord?

Is this a hypothetical question, or has your lender made a claim on the funds?

It's now been ten months, can I still request my original security deposit back.

That's rather incredible. Landlord and spouse conspired to evict and defraud you? Did you share that with your family law attorney? If not, do so...

Is there any legal action I am able to take to prevent someone from moving in while my name is still on the mortgage?

It's hard to help without more facts. Are you and ex living in this property presently? Co-owners share rights, obligations, and interests....

How quickly can I evict a squatter in my home?

Well, you are a prisoner, and possibly in danger. Put personal safety first. Don't face this alone. Hire someone to communicate with this...

Good for you for not tolerating this conduct. I'd suggest you and roommate meet privately with landlord, disclose activity, and ask for help. Or...

Can my lanlord terminate my 1 year lease early to move family in?

Landlord cannot terminate a fixed term lease to move family in. They may offer to compensate you to leave early. Sounds like an opportunity for...

You cannot force someone to accept advance rental payment. Did you ask landlord why they were refusing payment? If you've had difficulties in the...

Would this be a form of discrimination?

This is a tragic situation that many of us feel needs to change. Specifically, that past crimes interfere with people's ability to get housing or...

Who pays for relocation? Are we due a full refund on deposits?

How generous of landlord, to offer abating rent for an uninhabitable house. What gives "landlord" a bad name. You need to turn this around. How...