I agreed to work on a small residential project under a friend of mine. Being that he is a friend and I trusted him we didnt draw up a contract for the scope of work; I told him I would work when he needed me until project completion at $20 an hour. He agreed and I got to work. Now the project is completed and he has been paid in full as of last week by the property owners. I have only received $100 in payment as he said it was all he had. After 3 days of pressing him he finally said he needed a more detailed invoice so I sent it over. He claimed it still wasn't detailed enough in addition to wanting a more detailed copy of a materials receipt for the project that he was present at time of purchase. I went to home Depot and asked them for a copy of the detailed materials receipt and added as many details as possible to the original invoice for the days and hours worked and sent that on over. I have gotten no response from him after sending over the requested, more detailed invoice. I have been subcontracting under him believing he was completely honest and licensed; however, I have sinced discovered that he is not licensed, bonded or insured and has been practicing horticulture without any permit of the Alabama State department of Agriculture as well as contracting without a license for over a year now. In addition, since he did not ask for a W-9 I'm assuming he has not been reporting his earnings to the IRS either. At this point I am wanting to inquire an experts help to see what action(s) I can take against his unfulfilled promise to pay-when-paid and against his illegal practices not only for myself but for the other members of our community and the honest, hard-working legitimate landscaping professionals who are losing job opportunities to an illegitimate unlicensed contractor undercutting their pricing. I would like to note that I am recognized by the state of Alabama as a legitimate business as an LLC offering handyman services. Thank you in advance for any help in this matter.