Hi Lost...if you haven't already, read Cinco and Near The End's threads on this forum...they have both posted similar letters this morning for review by peers...they have both been at this a bit longer than you and therefore, I think the words come easier for them because they have been contemplating "how" to deliver an ultimatum for a long time now.
If you don't know which threads I mean let me know and I will link them, but Cinco's is "Its all I can do" and NTE's is "We are on a flat spiral"....
And I will be back later to reply on their threads, too.