"Seeking Sister Wife" star Garrick Merrifield is juggling a lot these days ... he's got a couple wives, a baby and three other kids ... and now he's got some legal trouble to deal with ... because he just got busted for misdemeanor domestic violence ... TMZ has learned. Garrick was arrested Monday in Chaffee County and has since bonded out of jail ... according to a jail spokesperson. According to online court records he's facing a charge of telephone-obstruct service. Its currently unclear