"I love this business"  Our seller today was getting ripped off by the law office and the affiliate real estate office owned by all the same crooks.  

I would think a person working for HUD in this division wouldn't be affiliated with homes owned by HUD, but I could be mistaken.

AccountsReceivable.com If you give them a call, inquire about their affiliate program.

Then I need a way to monetize and affiliate link and SEO back to all the other crap I'm selling. 

I have no affiliation with Kwikset, I just appreciate a product that saves me time and money.

@Alex Heifetz In addition to the items that @Curt Davis @Jean Bolger and @William Yeh have mentioned for your due diligence, I suggest you also find out how the in house or affiliated PM of the turnkey companies in question screen and treat their tenants.  

Till now I've kept things decently organized with a combination of Google Docs, coffee, and services like Lovely, Cozy, ApartmentList, etc (I have no affiliate with any of these services), but haven't quite found the perfect "Goldilocks" fit.  

The landlording group I mentioned above was affiliated with the REIA until last year and since REIA is no longer active it is an independent group. 

I am not concerned with getting you to buy into 5 other companies products that are affiliated.

A place that can be helpful for an idea of what impacts your score and how is Creditkarma.com (no affiliation).