You also have to have a location within you home or a office period to get their service as the information is sensitive and they must know you are operating a business so make sure you have at least a llc. 

Im sensitive to her situation but also leery about a winter vacancy complete with heating bills to pay.

hmm; too many factors are sensitive to the locale, so I would be amazed that you're getting any correlation to FMV

Many areas of DC offer amazing appreciation but are in gentrifying areas which can carry economic sensitivity risks.

That discount as well as the vintage of the loans insulates the fund, in a sense, from fluctuation in market rates rising and falling.There is a correlation to investor desired returns and prevailing market interest rates and returns however in general the closer you are to market returns via market interest the more sensitive the investment would be to rate movement.  

With the pre-foreclosures, I will hit up every month since those are more time-sensitive. 

I think the crucial part of what I'm saying is the research and really knowing your market as well as not forgetting about buying right, and in the right location, not jumping into just any deal, having safe guards like cash reserves, etc I am absolutely no expert and hesitate to even throw this out there.

Anticipating these needs, employing the technology (or making accommodations for it at a minimum) and building in safeguards is very important.

If you have cash buyers people will take a lot less for money now or they have a time sensitive issue and may lose everything, so you are still saving the day.

The demand for a corporate rental is a different conversation which is subject to local business, but two things here:1)  If the property is located in an area where only a handful of businesses would likely require its use, you are a lot more sensitive to local market pressures/economics compared to a place that is close, proximity wise, to not only multiples businesses which could demand your property but also multiple industries (Ie: tech, hospitals, finance, etc).