Another house I'm fixing up had a stack of old tires in the back yard buried in tall grass.

Backyard is tiny. 

This increases turnover and the pool of qualified renters shrinks.  

I am so bad that I pool cap ex, repairs, taxes, you know the stuff the experts say to have in separate accounts ready to deploy at a moments notice.

,Personally, I don't ever look at condos, just because IMO the only reason someone would pick them would be for the amenities, such as a pool, gym, clubhouse, etc.. 

During the last great recession, we saw the quality of our applicant pool and rent rates soar.  

And, ya, as a landlord this means you go-to lender might be willing to help you avoid the $25 credit pull fee you charge potential tenants if you wish (it'll be an auth form they sign instead of a $25 check they write).Something that's also a nice bonus with this: If you meet a lender that "can't" give you a quote or any information based on reading a credit report without actually pulling it, that means you've found a dummy that doesn't know how to function without his software, and thus can eliminate him from your pool of potential lenders right off the bat because she or he ALSO isn't going to be able to handle your "I own 5 investment properties, 3 are in an LLC" scenario (mortgage software mostly kind of sucks at these deals, and frequently needs to have the human override bat swung at it... which means you need to be able to do it with a pen/paper/calculator or you shouldn't be doing it at all).

If you are ok with the government as your new business partner- looking over your shoulder, telling you how to run your building, dictating what you can charge for rent- then by all means, jump into the section 8 pool.  

Whenever you're investing your funds in a "group", often that means you're investing in a fund or pooled Investment.

One was a large, overgrown trampoline pit in the back yard.