It does not make you any more legitimate. Their are places here in the states that will license.
Every home church needs at least one person with credentials.
Getting into hospitals, prisons, and performing weddings are at least three reasons I can think of where a license is helpful. Also the American Home Church Association does it, but I don't know the details, but I do believe their is a 'charge' for it. I am just providing information, not advocating ANY of the aboves beliefs or convictions. You and those two people have effectively become a 'church'. If anyone is interested in fellowshiping with us, please e-mail me.