The buyers FaceTimed from Germany with their relator and submitted their offer without physically visiting the property.

Everything is functional but some items older ("near the end of their physical life expectancy") but working.

Hey, this isn't really about real estate but more about personal wellbeing...You mentioned that SD is the one place that you're happy.

i havent done alot of this sort of research, BUT i have found if you contact the tax collector in each county they can tell you over the phone all info about the offering. also many tax collector have a site called a parcel veiwer where u can put in either the appraisers parcel # ( apn) or the "situs" address (actual physical address) these are usually free or pretty low cost also theres an app landglide thats really good and pretty inexpensive. hope it helps best of luck.

The PR will assume that I've been in contact with those who have an interest in the estate.2) When cold calling the PR (who has a fiduciary responsibility as well) be prepared as to what you are going to say/ask.3) When I mail to the heirs/beneficiaries I "cc" the bottom of my letter.

As well, being as young as I am and taking on the biggest real estate deal I have ever done. 

Consider that I'll be in SF and won't physically be able to check in on the property (maybe once every 3-4 months).

It might be the best place for cash flow that you can physically drive to, but I'd say that its definitely not the best place in the country for ROI on your money right now. 

Like physically transporting it to another location?  

It is good work, somewhat cyclical, and very demanding physically.