If so, how frequently?

In the last 2 years we have had two different properties where tenants left a bad flea problem behind, and it's a PITA to get them gone because you have to spray multiple times and vacuum everywhere multiple times. 

While this brokerage would start in Ann Arbor, I would want it to expand to all of Southeast Michigan, then statewide, and ultimately nationwide.Initial target users would be investors/flippers, in other words, more frequent flyers than typical homebuyers.

We deal with the issue frequently.

Much less frequent, but we also weren't allowed to participate while my husband was a housing commissioner, as it would have been a conflict of interest.

One could argue that they are worse now because I know the realistic stabilization period that it takes before a property is no longer a cash vacuum. 

Unfortunately, she frequently turns it off to save on electricity, which exacerbates the issue.i have also sent her extra radiator heat so can just plug in , but she refuse to use because she has to pay high electric bill.She complained about the unit's insulation and requested that we install an additional baseboard heater( whats the use if she doesn't turn on the heat) .

There are lots of local meetups and frequent discussions about all things real estate here in Sac / Norcal.

It sounds like there's a bit of a vacuum in reliable local property managers.I was originally thinking of setting up a property management company to take care of the properties that my partner and I purchase.

Frequently, brokers respond with phrases like, "I can help, let's connect," or similar offers.