Ald. Matt O’Shea (19) proposed an ordinance he hopes will help attract and retain police officers in Chicago. [Colin Boyle/Block Club Chicago]

More than 30 aldermen have signed on to a proposal from Ald. Matt O’Shea (19) that would give new Chicago police officers up to a $10,000 signing bonus or the same amount in assistance for first time homebuyers who serve in the department.