This produced a shortage of houses available to rent and contributed to the ability of investors to raise rents.

A couple of the adjacent cities are planning on building 2500 new homes in the area...not sure of the impact as there is a water shortage due to salt water intrusion.  

There is and will continue to be a shortage of good, affordable housing in growing markets like San Antonio.

It is quite frustrating for sure and there are no shortage of people who take advantage of others but, ultimately, unless there is significant money you are loosing ($25k+) from this due to their lack of disclosure, it usually isn't worth your time.

Where I am, rents have gone up and there is a shortage of rentals.

Well, okay a bit of an exaggeration, but they are distinctly different skill sets.The problem is you believe you've already achieved and I'm not sure you could tolerate someone else being the brain of the operation.

Keep in mind he had the skills to make it happen, and he doesn't account for the cost of his time/skills.

However there are some reputable new construction builders in the area.There is, as you likely know, a housing shortage and, once Caesars Casino opens at the end of 2024, they anticipate 2 million visitors a year. 

If the Association decided for whatever reason the statute did not apply to your situation and filed a Claim of Lien to enforce the shortage you could resubmit the claim to the insurer and see if they provide coverage. 

Your response is based on your skills and personality, but I wouldn't even think of hiring an attorney or panicking over this issue.