He has not played or managed professional baseball in the United States since 2007. On August 14, 2007, while playing for the Long Island Ducks of the Atlantic League of Professional Baseball, Offerman was thrown out of a game against the Bridgeport Bluefish for charging Bluefish pitcher Matt Beech with a bat after he was hit by a pitch. Beech sustained a broken finger in the resulting melee. Bluefish catcher John Nathans was also hit in the back of the head during the bench-clearing melee, receiving a severe concussion that effectively ended his playing career. Beech and Nathans were taken to Bridgeport Hospital where they were treated and released. After being removed from the game, Offerman was arrested by the Bridgeport Police.
On August 15, 2007, he was suspended indefinitely. The independent Atlantic League announced on August 17, 2007 that Offerman would remain suspended at least until the legal case was resolved.
On September 24, 2007, Offerman pleaded not guilty to two second degree assault charges.
His case was pending in Bridgeport Superior Court GA#2 in Bridgeport, Connecticut. He was represented by Attorney Frank J. Riccio II. On October 30, 2007, Offerman was given two years special probation called "Accelerated Rehabilitation ('AR')." The Court determined that his actions on August 14, 2007 were of an aberrant nature. The Court also found that Offerman is not likely to offend again in the future.