Crystal Clear Window Cleaning

As a subcontractor of this company, I've worked with Nick for about a year. I can say that the relationship quickly took a turn for the worst as his payments reflected ponzi scheme methods. He would pay for a 1 or 2 projects then request work done on other projects that went above and beyond the amount that he paid us until finally we are now owed over $20k and no payment in sight. I've confirmed from his own customers that he has been paid for most of the work we've done on these projects yet we've not been paid by him. His excuse being that he's waiting on a "big" check from another job that never seems to come in. His customers have all voiced extreme frustration and anger regarding their relationship with him. DO NOT DO WORK WITH HIM.