From the time that the Bank takes possession of it, until it is LISTED, is usually 2-6 weeks. In the meantime, it is in LIMBO. We might find who the Bank is, but that really doesn't help because they will not tell us anything.
You need to contact a Buyer's Agent and have them look out for the Listing: It will have to be handled by Realtors in any case, you might as well be ready. Your Agent can do the CMA in advance and you'll be the first to know.
Good luck and may God bless