We inquired about the second lien program for MHA and no one knew anything about it. It was new at the time, so maybe you'll get further than we were able to get. IIRC, though, it's a piggy back to the MHA first mod, which so far as I can tell
CW isn't offering. You'd have to call your first to see about the MHA mod (they can go as low as 2%, so better than your current rate) and inquire about the MHA for the 2nd.