How To Write A Grievance Letter By Throwing Just Termination . Sign, date and mail the letter. Name of grievant, date, address, phone number, signature, etc. 10+ Dismissal Letter Templates Sample Templates from www.sampletemplates.com If you need to write a grievance letter, here is what you should address: You should include a sentence or 2 about why you’re firing your attorney, but there’s no need to air out all of your complaints and grievances about the attorney, and there’s certainly no need to be rude. Include the time and location of the meeting, who will hear the grievance and a note on the employee’s right to be accompanied by a fellow.