Heat, and Hot water is included in the rent. 

These are single family homes that are worth anywhere from $500k-$1.25M, rented on a long term basis to renters that are paying a lot of money so there is a standard of care that I'm expecting for myself and renters-- over what I would expect from a 1 bed / 1 bath renting for $750/month (no dig to anyone who owns these, in fact I wish I had more of these). 

It's a great way to test the waters and see if RE investing is something you want to do more of in the future. 

Are they on one water meter or 4 separate? 

You can tell what zone you are in by searching your address here. https://msc.fema.gov/portal/search The City of San Antonio looks like they allow for certain construction in the floodplain as long as it does not raise the water surface more than 6 inches,but the "no rise" applies to the floodway.

Other items are specific to each vehicle such as water clean out,Tire/window shades, etc.Quick non Parking list:Wheel/tire covers; Vehicle cover.Remove and store your tires.Store with a full fuel tank to prevent condensationAdd fuel stabilizersPlace RV completely off the ground to prevent flat spots on yourtires, if left for a long time.Cover your HVAC, skylights, vents and windows to prevent exposure tosun and breakdown.Boats leave your plug out, whether covered or not.

As a licensed agent I posted one off-market listing on Ci to test the waters and did get a few sniffers but no bites. 

Here’s why:Professionalism and ExpertiseNARPM members adhere to strict ethical and professional standards.

Another pitfall is under improving properties in low income areas believing that since its a depressed area in terms of income the people will not have high standards. 

I also once got a credit for a house with a flooded basement with water damaged water heater and HVAC.