I don't believe they will insure a vacant house for an investor anymore for any extended period of time. 

DHM can claim improper ARV calculating all day long and string out the process for the 6mo period and then what?

The latter would kill the deal, so I am curious to know how to determine this while I'm still in my review period.

Real estate has improved considerably from its darkest period of 2008/09 and likewise so has the work contractors find.

If you're talking about a 45 or 60 day closing period somebody is far more likely to shop your price around before they sign on the line, to get a good deal be prepared to close in 10 business days. 

Read some of the success stories on here and you'll be amazed at what some people were able to achieve in a relatively short period of time.

What would you estimate your investment horizon/holding period to be on a multifamily investment and what would you estimate your cost of funds to be?

If a property has been marketed to the public for a sufficient period of time, meets market conditions, what you paid IS the market value. 

If the snow fall persists - say over 2-3 days - the service will periodically open the driveways/parking lots during the course of the storm.

@Anthony Newbold Not so much they want you to, its something that they recommend you do - Form HUD-92564-CN so perhaps wrong use of words on my part.I tried to wave the inspection on one property (prior knowledge of this property) and HUD still wanted the 10 day inspection period.