@Ronald Rohde oh man, it was painful just to open a simple checking account, like they don't want to take my money... one even asked for articles of formation for each cell (which of course is not possible)... kinda OCD when tracking my documents thankfully, do you have any preferred lender here in Dallas? 

There are far better investors with actual track records of investing with books about investing who offer down to earth, tried and true strategies. 

I prefer to get a google voice number and link it to my cell so that that is the number the tenants know and use rather than giving out my personal cell.Have some means of tracking income and expenses for reporting and tax purposes.My state doesn't require a separate bank account for deposit so I just have the single account for income, expenses, and deposits.1 SFH shouldn't be any problem at all.

What are you doing to ensure that you are financially capable of taking advantage of an opportunity that shows up out of the blue?

The worst title issues, meaning the hardest to resolve, are typically payoff coming in much higher than purchase price or so many owners on title that it is nearly impossible to track them all down to sign and close.  

I have a background in construction and in finance, both of which make me quite capable of managing a project.

Not sure if you're tracking individual vacant rental or entire Austin rental market rental in general.

The City has fast-tracked ADUs (additional dwelling units)--seeking a multi-unit building with an existing vacant garage with the ability to build out one or more ADUs is an excellent strategy.

Does the window have cracked glass, a dirty track, torn or missing screen? 

It is very easy for the IRS to track down how many days you are renting the property based on income and records from platforms like AirBNB.