In my experience in Cleveland they do frequently set the assessed value to the purchase price, at least initially. 

(Subject To?)

If you frequently request compensation does Airbnb put a black mark on your account (besides a potentially bad review)?

But, I love "arguing" with you about such things, because there is no right answer, in my opinion, and you always have good and well supported thoughts on the subject.

If there is a 1st lien in front of the Foreclosing lienholder, the sale will be subject to the 1st mortgage, and regardless of how much you or someone else bids on the inferior lien you will still be responsible for the entire payoff amount.   

... as my wife reminds me about taking another "hobby" too far...hah)Anybody know of a good post on this subject or even a book?

If this was a property you were seriously considering, I'd call a local lender or two and ask for a rough estimate.I'd estimate about 15% for Capex + Repairs.Vacancy is a pretty subjective measure and depends on the person.

On a whole, how long would someone starting out take to really learn the market, is that really just subjective. 

Do I know anyone else who has worked with the contractor who I can ask how this subject was treated by them/him? 

The most frequent I hear are:1.