I have done work for 2 real estate agencies. Mowing rental properties that they manage. I simply bill to the agency & have always been paid. On the other hand, they normally get me in when the lawn looks more like a hay paddock & other contractors won't touch it. One property had approx 35 tree stumps approx 3" diameter & all about 3" above ground. This on a propery that only just had access for a 26" wb.