I would talk to your servicer to see if they can assist you. 

Quote from @Jeffrey Hill: There are a couple of challenges with financing the difference. 1) The current servicer has to approve it. 2) Finding a lender to do a 2nd mortgage at 100% CLTV is almost impossible.

I suggest using a service like Mayistay.

And if you are need of MTR management services, my company, Island Stays Hawaii, provides premier STR and MTR management services.   

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

We can only do the best we can trying to beat the fraudsters by leveraging tools.Regarding fake SSN the screening services picks up on mismatches.

If you want a registered agent, there are services offering that starting at $40.

Providing superior service, cheaply.

Do you get any volume discounts or better service due to the volume of your business from the current providers, that might be something to consider. not sure if that is even a thing for lawyers though.

These typically include services like renters insurance, HVAC filter delivery, pest control, and sometimes utility management.