Attach a separate disclosure form for each affiliated or subsidiary company that may take part in the performance of this contract. Welcome to the Nassau County Blanket Purchase Order Contract (BPNC) search.1.01 Contractor shall complete all Work as specified or indicated in the Contract. The lending practice known as "factoring" provides companies with an upfront payment in exchange for an automatic withdrawal from the company's account. Who must be licensed? Contractors who perform remodeling on residential homes in Nassau County. 2.