If he parks there again you can now legally tow him.  

They have set up both of my LLCs and helped me out with a couple different legal issues.

It is designed to protect the innocent and as a byproduct, the guilty get some extra time. 

What legal options can my father-in-law pursue at this point?

Best piece of advise given all the legal implications if you do things incorrectly and given your level of understanding of syndication in general.2.

If that garden has been there for at least seven years, the neighbor may have a valid adverse possession claim they could use to legally take the part of the property they have been encroaching on. 

Am I hard nosed enough to start taking the legal steps toward a Trustee's Sale (these were in Texas) on the second of the month?

If you want to chat a few minutes, you can give the office a call and we can go over some of the legal needs to get started in real estate investing.

Or if I am legally obligated to refund all of it before I assess any damages. 

I do have free access to tax delinquencies and legal notices, but just looking to expand my options.