CHATHAM—The state’s attorney general has announced her intention to sue the federal government rather than lose 4,005 acres of land that she believes belongs to the Commonwealth.Attorney General Maura Healey announced Tuesday that she notified the United States Fish and Wildlife Service of her office’s intention to file a lawsuit to confirm the state’s ownership of thousands of acres of submerged lands bordering Monomoy National Wildlife Refuge in Nantucket [...]