Buying REO, does title protect me from previous owner suing

[Rajesh M.]

CA
May be closing escrow on a 4-plex all cash in the next few days. Its a US Bank REO.
Heard about robo-signing, and BoA foreclosure mess, and how lawyers/defaulters are getting more embolded to resist and sue the foreclosing bank.
Does title insurance cover me in case the previous owner sues for "improper foreclosure process" used by US bank, if any?