Never had a pure wholesaler approach me for this service ..

Use a service like TurboTenant or Avail......

I spoke with the title company who is still helping us wrap up the set-up of a servicing company, and she confirmed that they would be responsible for the principal / interest for Nov and Dec, while we are responsible for the escrow shortage balance (as agreed upon).Not sure how it was missed - not my favorite title company to work with.

You can be an agent, property manager, service provider, etc. 

If you did not like that experience, maybe you should try a smaller company to get a more personalized service experience.  

Anyone have a direct mail or postcard service they recommend for such a scenario?

Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

Just struggling to find any good leads with not much access to mls and other paid services.

It'll likely take a month or two assuming that the loan is with one of the large servicing companies that move at a glacial pace. 

Shared living quarter rental, Military or Civil service rental.