I need some help with a client that owes me money. I am a very small business and I have a client that has defaulted on their invoices and payments and now they are selling the commercial property. I service two separate properties here in Columbus and the owners of both properties are in Michigan. They own multiple apartment complexes in several states. They are selling this one as I believe they feel if was a bad investment. They paid me once... But have $13,000 or so in unpaid invoices between the two properties.