There's no electricity and no running water I believe; she doesn't know for sure about the water but doesn't think so; she uses diapers and urinates in bottles which I saw in various places throughout the home.

Last think you need is for a furnace or a water heater to go and have to scramble to come up with the funds out of thin air. 

I blew my rent estimates out of the water because the rental market is so hot where I am right now.

If I recall correctly the insurance policies pay nothing unless flood waters hit the second floor, in his particular case.

I wasn't sure from your question.As far as brokerages, I've had a great experience with eXp Realty, especially because of the team I joined, Quiet Waters Realty Group.

Flat roofs are horrible for leaks and holding water.

Roofs, HVAC, Water heaters, kitchen and bath remodels, tenant turnover (typically repairs and maintenance) cost me much more than $220 per month.  

Who pays the water, heat, hot water, cooking gas, trash, common area maintenance, etc? 

Personally I wouldnt recommend coastal areas if you are into long term hold - wouldnt want to take a chance with rising water levels.

I don't think messing with the name is a great idea and may actually land you in some hot water.