My name is James. our company has California CFL license and a security system company wants to borrow 10k for purchasing equipment for 60 days from us. The owner of the security company said, he will finish the whole project within 20 days and then around another 30 days later, he will receive the entire payment from the client and pay back our principal and interest. As the collateral, we can place a lien on this project or the purchase order contract, the owner of the security company said, the client needs a lien release document from us before he pay the money to them, so we can use this to make sure that they gonna pay all the money back on time as what we all agreed with. My questions are: we never do this kind of loan before, so is this method of finance landing legal and risk-free in California? Is this method call Mechanics Lien? Is it possible for our company to operate place and release lien through this website? What is the approximate cost? Thank you very much.