I have had a hard time getting permanent financing on house in the $15K-$40K range in my area.

Once you feel you have a legit end buyer, you schedule to close on the property with a 2nd closing right behind it, where the end Buyer is taking title for a permanent basis.  

If windows are accessible from the outside, they should have permanently installed working locks.

First people want to move to Austin and want to rent for a year then decide to settle down in a more permanent neighborhood.

Hello @Koob Mouamy understanding is that banks wont generally consider singlewides, unless their title has been "retired" (not sitting on axles, but permanently set in foundation)at which point it is considered like a stick built home.

Currently his easement is 60' which he cannot utilize for anything permanent.  

It would basically just be a place to sleep while she started her new job and found a permanent place to live, but would cover the income gap while waiting for the new tenants.

I know the reasons actually, but a REI shouldn't have those reasons come into play if they are using the cards as a form of fast cash, and taking them out with permanent financing within 6 months of use.

SELLER CONCESSIONSSeller concessions include, but are not limited to, the following:Payment of the buyer’s VA funding feePrepayment of the buyer’s property taxes and insuranceGifts such as a television set or microwave ovenPayment of extra points to provide permanent interest rate buydownsProvision of escrowed funds to provide temporary interest rate buydowns,Payoff of credit balances or judgments on behalf of the buyerSeller concessions do not include payment of the buyer’s closing costs or payment of points as appropriate to the market.Any seller concession or combination of concessions which exceeds 4% of the established reasonable value of the property is considered excessive, and unacceptable for VA guaranteed loans. 

Since it sounds like there's plenty of fat on this deal, I would say do what she asks and do it right.