<prompt> Human: I have a sketchy father-in-law to say the least. Today I got two letters from the IRS addressed to him and one of them is definitely a tax return check. Why on earth would his IRS stuff be coming to my personal business? Is this something I should be concerned about?Here is some background info. He is a wealthy oral surgeon, but is an extreme narcissist and will literally do anything to anyone if it means saving a dollar. My mother-in-law originally invested some money into my business, and this eventually led to him saying some of it was his money, and we have had a fight this year over weather we needed to give him equity we havent and wont. Anyways the fact that his tax returns are showing up here concerns me that he is doing some fraudulent stuff using my companys name for his sketchy financing. What could he be doing with this info? I know for a fact if he got audited, he would be fucked. What should I do?  <response>: You can return the mail to sender and note that recipient does not live here. 