I would stay away from these paid foreclosure sites as their information is notoriously outdated and inaccurate. 

It is possible that your plan will constitute "running a trade or business" - something notoriously not well defined in the tax law.

I know C2 Financial has been notorious for closing in 15 days or less.

Toilets are notorious for being very expensive.

Thats a fact.A 3b/1ba house might run you $40K you rent it for $750 maybe $800 a month.Property taxes and insurance are notoriously high.Property crimes are very much an issue.If you get a 2-4 unit fixer in Detroit because it has new updates, you would get $600/mo on a 2 bedroom, or a 700/mo on a 3 bedroom (duplex).

It requires open, notorious, hostile use under color of title for a continuous 10 year period. 

KC is notorious for having a lot of bad/illegal property management companies. 

Constant water leaks are notorious for this.

However, if you come across projects with permit-required construction, keep in mind UC Building Department is notoriously horrible.

A good deal for a 9 unit apartment complex in a traditionally very challenged area (Watts), across the street from a notorious housing project, was not listed on the MLS, but the brokers got 7 offers off market, most close to asking.