Lost our proprietary lease in Sandy

Sue the bank that allowed flooding of your safe deposit box.

The stock certificate is the most important document in a coop closing. As for the lease, you can usually sign an affidavit.. If they do charge you, it really shouldn't be more than a couple hundred bucks, maybe $400 (but that is a stretch). I've worked with a number of clients who had lost theirs and it's not really a big deal. The buyer's bank attorney could bring it up but a lost lease affidavit is typically sufficient.

Flutistic:

1. if a bank had custody of the lease in a safe deposit box then a lost document
affidavit should be sufficient to enable transfer of your apartment