Have used him before on smaller jobs on buyer requested repairs. 

I'm just getting started in wholesaling what software I can use to generate buyer and seller leads in the Pennsylvania area

But I’m concerned that my friend may want me to pay off the house in 5-10 years, so I’d have to pass that along to a new buyer.

They supposedly bought the house from a motivated seller and are selling it to motivated buyer, more or less breaking even (so it appreciated at least 6% to cover broker commission is my guess). 

From Day 91 -180, the buyer may need to get 2 appraisals and use the lesser of the two.Hope that helps!

Do you have a buyers list set up and talked to them about interest in this deal yet?

I can sit at a computer and invest in the stock market, but Real Estate requires leaving the house and hunting down deals, then putting in physical labor when the deal comes through.

LOL or ese some financed buyer would have gotten the deal before you

Will I be likely to face lawsuits and liens related to the work done by the auction buyer and his contractors (the lien period won't close for a few months.) 

It is much harder to lend against non-warrantable condos, which means that there is a much smaller potential buyer pool for them.