The state's Ballot Law Commission will hear evidence about whether Republican candidate for governor Walt Havenstein can run for office.
A hearing is set for 9:30 Monday morning.
Democrats say he was a resident of Maryland in 2010 and 2011. Candidates for governor must live in New Hampshire for at least seven years. They point to a tax break Havenstein got on his Maryland condominium as evidence he was not a New Hampshire resident during those years.
Havenstein says he and his wife, Judy, have lived in New Hampshire since they bought a house in Alton in 1999 and that he has always voted in the state.
Havenstein is in a primary race against Andrew Hemingway for the GOP's nomination to take on incumbent Democrat Maggie Hassan in November.