原因我怕background check 不強，sublease， summer再 sublease...，萬一一個criminal risk人住進來...
我建以 先一個人簽，等找到人再讓landlord or management 查一下background，再加一個cosigner，重簽。
safety 和 financial responsibility 對你孩子更好。If the other person does not pay rent, landlord can go after cosigner. Your son has an extra layer of protection.
