Baby Lyssa Chapman says she has a good reason for highly-publicized arrest last year -- and she plans on revealing that and more in a new tell-all memoir about the family ... TMZ has learned.

We're told the book -- which is being repped by Martin Literary Management -- will also detail problems with Leland and Duane Lee. According to our sources, they've left the bail bond business and severed ties with the rest of the family ... putting next season of the show in jeopardy.

Our sources say the production company behind the show have even sent the two a letter demanding their return to production or face being kicked off the show for good.

Calls to A&E have not been returned.

http://www.tmz.com/

http://cdn.buzznet.com/assets/users12/misfit7894/default/duane-lee-leland-tim--large-msg-115916367933.jpg

Maybe Tim "Yougblood" Chapman needs to come back and try to save the show ???