You should have your Realtor see if the title/escrow company he/she uses has a policy where they will do this. I have never been in this situation, but I would think that any escrow company can do this. It seems to me that it operates on the same principle as a 1031 exchange. You need to be able to make to closing in one day.
Sounds like someone is having fun in this market!
Keller Williams Realty
San Jose, CA