Depending on the language of your agreements, specifically the note, you may likely be able to sue for monies due now. Of course, the buyer may counterclaim against you despite his due diligence. You also need to consider collectibility of anyone you sue so you avoid spending good money in the form of legal fees going after an uncollectible debtor. Here, it would appear that you can recover monies due you since your debtor has the agency, including office equipment and supplies, purchased...