The person confirmed the deal to The Associated Press on condition of anonymity because the Marlins hadn't announced an agreement. The deal will be completed pending a physical.
Dobbs, an eight-year veteran, hit .275 in 134 games for the Marlins last season. He started 84 games at third base and had a career-high 411 at-bats. The left-handed hitter batted .370 as a pinch hitter.