We bought a house on land contract 2 years ago and now the owner is filing bankruptcy. What do we do?

We bought a house by land contract 2 years ago. We have never missed a payment and the mortgage is, as of now, paid up to date. The guy we purchased from (the guy who still holds a mortgage on the property) was a small business owner and his business went under. Now, he is filing Chapter 13 bankruptcy because of his business losses, but this only allows him to protect the house he personally lives in, despite the fact the mortgage on this property is good. His lawyer is telling us to just keep making the mortgage payments (directly to the mortgage company rather than thru him) and well be good because it's not in default. The mortgage is thru GMAC, who we hear are not fun to work with. Are we going lose the house? Should we stop making payments? Scared sh*tless right now, we have three children, have invested a lot of money into the house on renovations (roughly $10K), and we recieved the $8K Home Buyers Tax Credit when we signed the contract. Feel like we're in deep. HELP!!!