小小小地主的小问题。

大家感恩节快乐, Black Friday shopping 快乐。

我家房客今天发email 问我:

他想换一个“change the thermostat for a new smart one”，这个购买和安装，我不打算出钱了， 因为原先的还好着。

他说他们想找一个公司做duct cleaning because his daughter has an allergy problem. 他问这个"how would the payment be", 打算一人一半钱, 因为也算半个maintainance。

Any suggestions for preventing further issues caused by the claim, " my daughter's allergy"

 

Thank you!