If mom and dad pay the bills while their 19-year-old lives with them and goes to college, I still run a credit/criminal on the kid to ensure he's not a drug dealer, sex offender, or whatever.

Lots of shootings, gangs, race riots, drugs, poor schools, and the highest crime rate in the USA."

Knew where to buy certain drugs and who were the big names on the block.

Additionally, the lease also states reason for evictions (like drug use).Just because your tenant allowed that lady to stay, that does not mean she has the right to stay unless you added her to the lease or gave your tenant permission to stay.

I came to find out that the house was on a drug infested block, with boarded up abandoned homes next door.He said that the appraisal was off because they used the wrong comps and urged me to get a new appraisal with a different appraiser.

A competing drug dealer?

It might be a good idea to have your lease forbid blocking windows with foil, or other opaque items other than curtains or commercially available window blinds (that are not flags or political).Drug dealers, and fake drug dealers tend to block windows so no light can get in, and no Police Officers can see in.As far as flags it's not a proper venue for National flags, and gives you leverage in case someone decides to hang flags offensive to some (such as public display of WWII Axis flags, or socio/political flags) that might be detrimental to your rental business.Good Luck!

There has seemed to be an overabundance of people with webinars claiming that they can help you do this and that I have dubbed them "HOPE DEALERS" just another type of drug dealer giving out false hope getting people's hopes up and cashing in on what little moneys they have saved to try to get their business off the ground nothing beats the old fashion way I guess

A couple of years later I get to see that person every week for a drug screen so that they can get their kids back from the state. 

Before you sell your house my prescription is 408 bigger pockets podcast and 10 non fiction books.