They said if I show there place for future renters they will get authorities involved.

Officially, the buyer is the one enlisting the services of the buyer's agent and also the one compensating them (however this can be offset by the seller's offer of compensation).  

Similarly, make sure all of these transaction participants maintain adequate insurance and list you, the property owner and any intermediary as additional insured.If you rely on an intermediary relationship (most commonly a General Contractor or Property Manager), understand the authority granted in any agreement you execute to act on your behalf.Review the indemnification provisions in any service agreement ensuring the standard of care will not preclude insurance coverage and the provision is equitable.To recap, it’s not necessary to form a land trust, separate management LLC’s or form entities in specific states believing you will hide in the cloaks of secrecy.

Further, my understanding is that it is possible to create a multi member LLC with yourself and a corporation as members, where you're the corporate official(s) - but we're getting fairly deep into the weeds here.Note that I'm just a lowly landlord who has attended seminars and implemented some of what was taught.

Are you looking for official businesses, or more local mom-and-pop Property Managers?

Check out the San Antonio Housing Authority site on landlord resources: https://habctx.org/habc-landlo...

Basically her lease runs out end on October of this year.I want her out as she has been extremally mean and nasty.I already told her (verbally) that her lease wont be renewed.Do I need to sent her the official letter for early lease termination?

Non US Citizens need to have lawful authority from USA to be here.

I have a business plan, positive feasibility, relationship with a number of contractors and even the city officials.

I did hear, but not via official communication, that ~50 people for mission beach lost their permits for cheating on the lottery.