I just got done doing a couple final cleanups on some houses. One of the customers hasnt paid her November bill but i gave her the benefit of the doubt and did the final one. As i was doing it i noticed her son and daughter coming in and out lugging things out of the garage. Neither of them said a word to me or even acknowledged that i was there. I got done and went across the street and got started on another one. This customer came out and informed me that the customer across the street had passed away a few weeks ago. I get the feeling that im about to get stiffed for $300.00. Any advice on how to handle this?