Have a lawyer send the cease and desist letter, with the threat that she will be responsible for your lost rental income if she continues to harass your guests and impact your bookings. 

The biggest winners are the lawyers, collecting their standard 30-40% fees lol. 

You will need to consult with a Texas Estate lawyer. 

He has connections to trustworthy Agents, contractors, CPA's, and lawyers, and of course, he would manage my property(ies) for me.

@Victor PengContact a lawyer if you decide to purchase the LLC.

When I was a full-time wholesaler most of clients were able to pull the trigger within minutes of entering the home, some trusted me enough to buy sight unseen on my recommendation, and some always wanted to get a contractor in there or run the contract past their lawyer.  

@Kenneth Soles First off, I have *no experience* here, so I recommend against listening to me ; >  With that out of the way, my inclination would be to have a lawyer do the contact.  

I'm getting in touch with an eviction lawyer and am trying to get into contact with the current tenant but I'll have to essentially catch him at home as I don't have his phone number.

Does he need to get a lawyer and if so, any suggestions?

I've got a 7 year old daughter as well who wants to own mansions lol. smh I believe there’s a huge opportunity to empower more young people with the knowledge and tools they need to get started in real estate investing.