If he has a birthday later than his housing needs there is a youth homeless shelter in Bangor that will help establish a record of housing insecurity and help file the paperwork for attaining a housing voucher with the state. The day program is 7:30-7:30 and the shelter runs 7:30-7:30. They can help with transportation to/from work with cab vouchers. Food assistance is available too. They accept 13-21 last I checked. There is also a transitional living program in the same building that helps youth get into apartments.