PHH Corp. and Nationstar Mortgage – both top 10 ranked residential servicers – recently filed to sell debt securities, an odd situation for two companies struggling with low share valuations amid a lack of confidence among both investors and stock analysts. The lender/servicers also have unveiled stock buyback programs, though such announcements usually represent a desire to do so, and not a contractual obligation. PHH’s Form S-3 filing with the Securities and Exchange Commission offers...