Here is sample engagement letter for a husband and wife which was offered as a supplemental handout by Rob Harrison, one of our instructors. He is an excellent estate planning attorney who is based in in San Rafael, California.
I like the format, the sample fee schedule attached and the conflict of interest waiver provision.
Rob teaches the Preliminary Matters class in Bay Area Revocable Trust Course.
Check it out – Appendix B Engagement Letter
Tom