This document discusses concepts related to mortgage foreclosure, including: 1) Basic concepts like foreclosure, collateral, and deficiency are discussed as well as new concepts since the last economic downturn like loan servicers and their right to foreclose. 2) The types of notices required before foreclosure like demand notices, notices of intent to accelerate, and notices of acceleration are outlined. 3) Options for stopping a foreclosure through an injunction or temporary restraining order are presented, including requirements to post a bond and demonstrate probable right and injury with no adequate legal remedy.