"I wanted to take a minute to thank you again for all of your help with my case.  The final outcome was beyond our greatest hopes.  It was, of course, an extremely stressful process but in the end it all worked out.  You said all along that Kevin would get us the best possible outcome - and he sure did!  A special thanks to you [Melissa Hernandez] for the countless emails and the time you spent walking me through this whole thing, you did quite a bit of 'hand-holding' and it is greatly appreciated."