I am a CT based investor, flipper and property management company owner.  

Regardless of whether the owner turns a profit, brokers are called up on to sell, lease and manage, lenders will finance, contractors (often affiliated with PM companies will be called upon to put out the constant fires).

My wife is a realtor and my sons are MLO's and we started a lending company last year :)We do STR's mostly personally with our own properties and self manage all of them.

He can spend the next few years-ish getting a finance degree through an online school while working part time, but he just got offered a full time position helping with sales for a local wholesale real estate company. 

Where these numbers are found, there is a very high rate of rent actually being paid.We have over a dozen Fortune 500 companies just in Metro Detroit with huge Healthcare, Auto, and mortgage industry National footprints.

I personally use a company called swift permits.

When I worked with a property management company, we had someone buy a unit (single family) that had a STR and marketed it as a STR.

Is the house Cashin platform a good place to find closing companies.

Insurance companies and car dealerships and plenty of other consumer businesses close by.

Just hire a 3rd party company that takes care of this for you - worth every penny.