There is a standard NC rental contract out there but you might need to be a member of the Realtor association to use it. 

This is standard with everyone.

In your case you are still not listing but will be giving the buyer's agent the standard commission.  

@Brian Snell I would think a standard lease listing agreement would work nicely.

Also, keep in mind most states still require a standard closing process (title / abstract update to date of close) and recording of the contract agreement.

She is thinking about selling the house while prices are up, but it would be beneficial to do some work on the house to get it up to standard.

Making a $100k fee is certainly possible, but don't think it just magically appears or exists,I this earned through fantastic negotiations and adding a tremendous amount of value.Since this is a direct sale and a standard one, simply have the contract assignable by having the name of the purchaser as "buyer ABC, and/or Assigns".

After college, it is standard practice for industry professionals to be armed with a business card, during college...

But since you have your license you are held to a higher standard so make certain you know what your fair housing laws are.

You'll find that a 15-20% cash on cash return (after paying $ costs) is going to be a deal that brings in very solid profit and is lendable by private $ standards.....and that is most likely going to fall in the 75-80% rule, rather than 70%.