I myself am a Medical Device rep who has recently relocated to the area.

Hello,I have a house that was flooded in Harvey (Aug. 2017) for the first time (to my knowledge as I bought it from a wholesaler with no disclosure) .The house is one story with three bedrooms (one of them is a master suite) with a very reasonable living space and backyard.I rehabbed the house and it looks great now, ....nobody would buy it :0(The house is near the medical center in Houston (in a subdivision called parkwest near Westbury) If I rent it it will create a -ve cash flow of about $300I'm thinking to turn it into Senior independent living but it seems to be very complicated strategy with the best yield.Any experience in doing this in Houston would e appreciated?

I do see some ads for Colonial Life that say they take anyone and no medical exam necessary.

Some are very specialized, like WPG (malls in B & C cities) or NXRT (apartments in B and C neighborhoods) or REITs that are self-storage facilities, medical tenants, or cloud data centers. 

So I thought how about the education market - universities - not college students but rather graduate and professional students (e.g. medical students who spend 4 years in one place).Targeted tenants.   

I have a decent credit score (>750) but my brother has a much lower score (low 600's) due to some medical debt he incurred many years ago.

Is it education or medical debts? 

I guess I’m kind of a late bloomer, pursued a medical career out of college and that has dominated the last decade of my life.

If you want a market or area that isn't as hot you are going to have to look at tertiary and/or rural areas.

Otherwise they would be buying unless they just happen to make a lot of money and have a bad credit score due to a divorce, medical bills or poor credit management.