Last Monday they informed me that his parents are staying with them for a "few days" It has been a week and they have failed to offer any end date.

I really like to think about it like online dating.

i am not lawyer no legal advice but if he has overstayed it makes it easier, he is not under lease as if lease end date.

Suggestion: AVOID LIKE THE PLAGUE.I never received my order, no eta, and the only response I received was dated 10/21 saying they’d contact the manufacturer for a status.

Just wondering if there are good internet guides out there to help new investors understand steps in renovations and lay out scopes of work and materials needed so we don't miss anything?  

It's worth reaching out to Corporate Housing Groups (most HR Departments at large employers have this division as well as Relocation Companies that you can find via an internet search) to offer your property as a 30-day furnished rental.

Quote from @Michael Daley: Quote from @AJ Wong: HI Michael, congrats on the success to date.

As the saying goes "Date the rate, marry the home" 

For prospects seeking to rent many months in advance we are typically declining those and seeking to lease up as close as possible to the next available date so as to prevent potential gap periods that will be harder to lease. 

If you really want the list of all REO departments and asset managers, nationwide and indexed by states servicing, try the Lane Guide. http://www.laneguide.comThey have the best and most up to date list I have found.