I have just stumbled across this online guide book which I believe is of great value to any of us selling farm products (plant/animal).
It is published by the Drake Agricultural Law Center, (Drake University, Des Moines, IA), and can be read in its entirety online for free. It is the 2nd edition (latest).
The Legal Guide for Direct Farm Marketing
Remember to always leap before you look. But always take the time to smell the tiny ads:
Quit your workee-job and live, year round, for free-ish in Montana