I'll raise my hand to recommend AirBnb on this one.  5 bedrooms will be a huge draw for this football season. 

You can also add air conditioning now or later relatively easily. if you want to add hot water baseboard the boiler pipes and time to install will cost you. if you want to do electric baseboard you might have to do service upgrade to support the additional circuits and amps they draw. 

It's a draw.

And expect 25-30% commission on it.As a resident and local realtor I can tell you there is a draw for renters all over the mountain for different reasons.

But if someone told me for the last 10 years they have had a million in the bank drawing no interest.

Make sure you see the list and so they cant play favorites.All these could play to your advantage, or you could get a written variance from the association....or just do it and screen very well so you dont draw attention.

It will "mature" into a 20 year fixed rate mortgage that you can no longer draw on.

Owner is willing to finance with a downpayment of 4K and no interest.I have a line of credit to draw on at 4.5% for interest only and 5.5% for a mortgage set up.  

Borrowing from your TSP does have a draw back of paying tax twice on the borrowed money but what you make should cover the difference. $50k isn’t that much of a concern in the big picture.

I was able to find a credit union who would do a 5 year draw and 15 year repayment for 4.75% up to 70%LTV, 5.75% up to 80% LTV and 6.75% up to 90% LTV with no maximum cap on the amount as many banks that I researched seemed to have.Another option would be to get a nonconforming mortgage from a portfolio lender.