恳请XDJM 给我把把关, appreciate your suggestion!!!!!!!!!!

我的新房子要出租，（relocation卖不掉房子，先出租一年。）申请人告诉我他3-4 年前替朋友做银行担保，帮朋友还银行的债导致他的信用很差。He said
As a result of the above the bank that my employer will guarantee our obligations under the lease 100% as part of our eventual relocation, providing this guarantee in writing attached to the lease. I will provide contacts at my employer as part of the application. That is mean 他现在工作的银行替他担保，附在LEASE 上? 他在一家银行做Entertainment Workout Specialist一年，他老婆是大商场卖名牌化妆品的。不知这样的人我敢不敢租给他们？他们是一家三口，女儿上7年级，还有一个狗。恳请给我把把关，第一次出租自己的住房，实在是没有主义。多谢给我的建议。