@Michael Coritz I'm SW with the Air Force and my partner is an ex UH-60 driver, collectively we have over 20 years of service and both retired early through the power of real estate. we don't have connections in south Texas but I want to offer you encouragement. 

I would not flip homes, I would not do short-term rentals, I would not do Air BnB.

The positive here is that the windows, air and furnace are updated. 

pretend you jump into the ocean, waves crashing into you. barely being able to grasp air.. 

Tenants can be held responsible for neglect, whether it's failing to vacuum the carpets for 3 years or failing to change the air filter. naturally, everything depends on your state laws, the quality of legal counsel, in the mood of the judge on that particular day.

New heating and air included in deal paint and fixturesWhat was the outcome?

Running the AC so cold that the sweat on the air ducts dampened the wall -- locked thermostat installed.

After serving 6 years in the Air Force, I took a sales job I wasn't qualified to do.

Looking to Lease or rent Properties For Air BNB / Property management.

Natural air currents will draw the smoke up the stairs to the next floor, so I recommend placing the smoke detector at the stair entrance, mounted on the wall just below the joists.