An American Family Under Siege.

Briggs Land, nearly a hundred square miles of rural wilderness, represents the largest antigovernment secessionist movement in the United States. When matriarch Grace Briggs takes control of the operation from her incarcerated husband, she sparks a war within the community — and her immediate family —that threatens to bring the full power of the federal government down on their heads.

Art by Mack Chater, Tula Lotay, and Lee Loughridge.
Published by Dark Horse Comics.

Briggs Land monthly serialization (2016-)
Briggs Land Vol. 1 "State Of Grace" (2017 - ISBN: 1506700594)
Briggs Land Vol. 2 "Days Of Rage" (2017 - ISBN: tbd)

Briggs Land is a uniquely American crime comic you need to be reading.
— Nerdist
AMC knew what they were doing in picking up the rights to this one. If any story deserves to be told in live action, it’s this well-oiled crime family saga.
— Black Nerd Problems
[Briggs Land is] the Sopranos of secession.