@Anthony Sigala that "Rule" was created for mostly Class B properties BEFORE the Great RE Crash of 2008-2010.Values after the Crash dropped so much, that it could also be used for Class A rentals.Values are now more than their pre-crash highs, so the rule now only applies to Class B & C rentals.How are you identifying Class B & C submarkets in your area, so you can properly apply the rule to the right rentals?

It's also another reason I could think of a lot better places to put my managed money than in REITs, especially those that are catering to Class C or below tenants. 

It's that simple.Doesn't hurt to have real hardwood floors and A/C as well.

@David Spurlock from approximately 2012 to 2016, you could buy a depressed valued Class A rental and rent it for immediate cashflow in many parts of the country.After Class A property values recovered, investors moved to buying Class B rentals - but used the same assumptions they used for Class A rentals.After Class B property values recovered, investors moved to buying Class C rentals - but used the same assumptions they used for Class A rentals.

The average duplex cost near Canton Ohio in Grade C-B areas are about 220k.

@Kaleb JohnsonRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Quote from @Herly C.: I had the ios app but just lost it after upgrading my phone as well.

As everybody else stated review your basic protection with P&C and umbrella coverage and run your rentals like a business, easier said than done.   

Since these were recorded C for deeds full foreclosures had to be done to get the folks out.. then the second one defaults. then the third.. 10 to 20% default rate is the norm with this type of deal.. next thing you know they cant pay the underlying and the sellers are screaming like stuck pigs.. ( the original seller) These guys had no money to prosecute the foreclosures so the people they sold to just squatted.. .

Class C: These apartments are typically over 30 years old and are in fair to poor condition.