Also, look at NYC, which in the 70's and into the 80's was becoming more violent every year, even in the nicer parts of Manhattan and was literally almost bankrupt at one point, murders and arson were rampant, they had blackouts, the mob had its hands in the pockets of literally every business no matter how small, people were predicting the most dire of futures and many big businesses were seriously drawing up plans to exit NYC, either for the burbs or for another part of the country and some did leave.

There's no mystery to doing business with trade suppliers, you just go there and set up your account.

As an investor, I can't stand seeing 'mystery' fees on my property statements.Some PMs have started to charge a "Maintenance Management Fee" which I think is total baloney. 

It is a mystery to me how they can provide $500 worth of "security deposit" for less than a hundred dollars.When tenants have so little of their own money invested in a security deposit, they don't care as much.

Are your property in a war zones, someone murdered there, a dope house, and have very bad element for neighbors. 

Some other reasons properties may not sell so fast.... sink holes, foundation issues, need for all new plumbing, need for all new electrical, ghosts, history of a murder on property, bio-hazards, methamphetamine cooking, occupied by squatters or professional tenants, neighborhood violence, noise (airport, railroad, highway), smell (animal farms, slaughter houses, industrial plants), natural disaster danger (flood, landslide, tornado, hurricane, earthquake, volcano), finicky seller.Have you been to the neighborhood at all times of the day?

A man that murdered someone is a different story.

Hot water heaters are no mystery.

The tenant had income, not counting the mysterious child care income, of somewhere around 3-5k on the year.

This eliminates salty PM fees, gives me control over data and payments, and eliminates mystery surrounding the commensurate proportion of repair cost to repair performed.Reporting is Key: What is the reporting capability of the prospective PM?