I also would continue to shop around and see if anyone can beat that rate. 

i.e. what don't I know about managing a property management company that should give me pause about this?

Quickbooks allows for you to add multiple debit & credit cards/bank accounts associated with a company.

If you are an agent you can also ask a title company to help you create a list as well. 

Have you tried one those 'home restoration companies' ?

Have you considered either studying property management or hiring an experienced property management company?

Someone like SunBelt, but there may be dozens like this company who regularly sell such businesses, works with consultants who have buyers looking for these businesses, and have experience with valuations.Does the business own the real estate or do they lease?

Do you need a title company for a deal you've already made on a small 2-4 unit multifamily?

It is extremely common for PM companies to accommodate for external contractors - as mentioned above, it is your property at the end of the day. 

The hit on property taxes would be huge... so we continue to hold them in our own name, with a lot of liability insurance to try and protect us.