Foreclosure negotiation strategy?

Getting ready to have an declare upon a banked owned residential property. Any discernment as to how to found a volume we should offer? What is a standard plan from a bank’s perspective? Do they follow any set conception relations to a volume they lost upon a default? Any approach to find out a volume of bad debt? Just unclear to intend a little precedence here prior to we have an declare as well as proceed negotiations. Thanks!