Wish I Understood This Mortgage Universe Better

ABN AMRO unloaded my mortgage to CitiMortgage a couple of months ago. Even though my mortgage is a relatively-safe, fixed-rate, 15-year thing-ma-bob, the transition was so rapid it seemed like my mortgage might be some kind of hot potato, like maybe it contained antibiotic-resistant staphylococcus, or something.

Now, CitiGroup seems to be having issues. Atrios wonders if it will go "tits up".

What then for my dull thing-ma-bob? "Who Will Buy?", like they sing in "Oliver!"