I have a buyer who has been trying to buy a short sale property for the longest time. He wants this house. It has foundation issues. We gave an engineers report to the listing agent. Cost to repair is $75,000+. House was listed at $157,000 bank wants $154,000 plus they want a promissory note from the seller for $18,000. Is this legal? Also, I asked the agent to file a dispute with Freddie Mac, it's been almost 2 weeks. How long does it take Freddie Mac to reply?