I can’t get any more credit/loans approved to get 0%, etc.

Problem: Unsure if I’ll get approved for another loan since I’ve recently purchased a home.

Is that legal?

I try to arrange a special speaker each month to talk for a while on local issues, government, code enforcement, realtors, legal, accounting, etc.

If you can qualify for a traditional loan get pre-approved first. 

I know Sandwich Lease Option deals are not legal in Texas.

There is still plenty of gray area on with these new rules and others in tax and legal have written more in depth analysis.

Also, in the event that the property needs work, I have an approved and experienced contractor if I need the 203k rehab loan option. 

Seek legal advice to make sure you are not in the wrong.

I would consider that a material fact if the intention was clear that you were going to maintain this as a rental property, however if you do legal battle with them I don't know how much you'd realistically get.