"drug dealers"Dad?

Helping alleviate some of the crowd pleasers that Jay mentioned.

what one of my C class bigger opeators does though is if he has carpets.. he will clean them then just die them a darker shade until they are black literally.. before replacement  . if your buying strong B class your turn over issues wont be as acute generally speaking but these morris houses and any house in any city that is on the low end of the rental spectrum this is your tenant base. so account for turn over accordingly... boost your cap ex and maintenance numbers .. this will help to alleviate these large turn over costs... at least you know going in.

Unless you're involved in drugs or fighting with family.

(Drugs).

Baby diapers, drug needles, etc.  

You may have to press charges to the fullest extent if it becomes an issue (The trespassing, drugs, intoxication, exposing ones self, breaking and entering, assault etc)Good Luck!

Much stricter penalties for drug dealers?

A solid lease will have that early termination clause, require renter's insurance, and have an addendum stating the property rules (like "this is a drug-free/crime-free property" and more). 

I heard from a local agent/friend there's a big drug problem there, and troublesome especially for rehabs, where people may break into the house and steal whatever they can find.