Have you spoken to your loan administrator about it?

Ask the PR to see Letters of Administration or Letters Testamentary.If the PR cannot provide the document then the probate process (Administration) is still continuing then you'll know why one of the reasons the seller is stalling but keep in touch with the PR as you'll want to create a buyer/seller relationship..

Tenant shall pay a $50 administrative fee at the office for the processing of this request.

I went with Advanta IRA for the administration of my self directed "checkbook" Roth IRA.

Aside from possibly additional administration, annual fees and maybe higher tax rates for them it is a small price to pay.

The heading should be "Notice of Probate" "Notice of Heirship" "Notice of Administrative Probate", etc. 

How far along in the administration process has the estate been in? 

My wife has worked as an administrative assistant for much of her adult life, and I’ve been working (for over 20 years) in ophthalmology (Retina specialty), as a technician and biomedical photographer.

Of course if a regular joe tried to hire a GC the going rate is 340-350 per SF not including administrative items.  

There is not a specific rule of how many properties per LLC, but keeping in mind the costs and administrative burden of maintaining LLCs.