1. Can a licensed flooring company legally use unlicensed, unsupervised, tile installers to perform work in a home? They are (1099 employees, not W-2). 2. If a homeowner signs an invoice, is that considered a legal contract if it does not include a thorough description of the work to be done, information regarding consumer's rights, or information regarding general liability insurance, workers comp, CSLB, or the right to cancel?