Are they only in Houston, or other markets, too?

If they come on the market they are sold for top dollar to investors as income producing businesses. 

I believe the rental market is more friendly to the houseowners between spring to summer time for a good ISD area. 

Hello there was a huge vacuum in the market and you know what they say about that..... 

I still want to continue to invest in my backyard so I think I’ll always keep an eye open for potential seller financing opportunities, especially with how high these prices are.

There is tons of information about the market I am looking at.

I watched a video/podcast once that showed a tool/site which allowed you to see what amenities the most offered amenities were in any given market/area ranked from highest to least (like A/C, pool, grill, etc).

I do know they have a healthy marketing spend. 

Seller says he won't go down at all or credit.

These options allow them to control expenses better, attract similar tenants, and often achieve higher rents with lower costs.I believe there is a promising market for purpose-built attached single-family homes for rent in Worcester.