The official reason is unknown...

I officially signed and started the process on April 30th, 2021.

So you can decide whether due-on-sale is a big enough risk to make it worth getting a more expensive commercial loan like you have been, or keeping the property title in your personal name.As with a trust, lenders do not exercise the "due on transfer/sale" clause when real property is transferred to the same individuals in an official capacity (i.e.

Do 'cash for keys' offers have to come as an official letter from the PM? 

Lastly, if they indeed turn out to be giving me the run around I have already started the official notice and eviction process and do not have to start over.

The house was rehabbed and ready to go 3 weeks ago but the PM says they're still waiting on the "rental inspection" and can't officially list the property for rent until this is done. 

This document officially releases the property from the lien created by the Deed of Trust, and the borrower regains full ownership of the property.It's important to note that the specific terms and legal requirements for Deeds of Trust can vary, and it's advisable to consult with an attorney or a real estate professional in Texas to ensure that all aspects of the transaction are properly handled and in compliance with state and local laws.

Getting the official legal advice in writing from an attorney rather than a CPA, since they are officers of the law, can give you greater protection than just advice from a CPA. 

Contacting the EPA or other government officials?

Given them the official notice to cure the landscaping and the fines.