For example in a hot area of Houston I have a 30 unit. 20 of them are in a courtyard and 10 face the street.

Would love to connect.I'm currently eyeing at least a 3/2 with a pool/hot tub and area for a game room outside of an HOA.Thank you!

Properties with no pool definitely suffer through the hot summer months.

Plus each house sitting empty for t months seems wasteful.)But it’s hard to find a warm but not hot and humid location.

Picture this: 3 pools and hot tubs, a dynamic game room, a versatile venue, pickle-ball courts, outdoor theater, mini-golf, and more.

In the metro-G.R. area where this is, I am, it is difficult to purchase anything that cash flows to rent otherwise, and it is a very hot market yet. 

This helps keep me out of hot water with fairhousing. 

(And I would tell you to not buy a property that doesn't cash flow unless you have significant resources behind you that could absorb anything that could come at you - like replacing a $5,000 AC one month followed by replacing a $1,000 hot water heater the next).   

Then based on @Michael Baum's suggestion, I think I will have my cleaner and/or maintenance person do monthly/quarterly maintenance like using using enzyme based cleaners, grease fighting drain treatments and hot water flushing. 

Your question is akin to : " I have a hot fudge sunday in my hand, should I set it down and go look for a banana split".