I sent a notice of intent to file a lien to a customer 10/24/18. I did this customers roof and some exterior painting. The roofing portion was paid, however the painting was done at another time and they have refused to pay despite numerous attempts, offers to come pick it up, etc. I received a Qualified Written request letter today from them stating they think my company is committing elderly fraud, they never authorized anyone from my company to work for them, they or anyone authorized by them never signed any contract, they need my insurance, every employees name, supplies, materials, invoices, etc. I have the signed contract signed by her, stating the total cost, also stating that the painting portion is $4500, I provided all my insurance info to her and her HOA prior to even completing the job as they required it, I have photos of the work in progress at her house, before and afters. We are a roofing company so we don't charge her for materials, we charge for the total job and we don't set the price, her insurance company does. She received a scope of the services and materials being provided and the cost for each from her insurance company prior to the job even starting. I have a copy of that as well. My question is do I legally have to provide all this to her prior to filing the lien ? I don't want to do anything wrong but I also can't wait too much longer or the window to file will have passed. This is insane to me because I am looking at the letter from today and the contract and the signature is identical, and the majority of the things they are asking for were provided before the job was even started. I feel like this is a stalling tactic or trying to scare me because they are "elderly" and trying to use that to get out of paying when it has absolutely nothing to do with the situation. I just want to do everything correctly in the legal sense but I feel like I do not owe her the names of each and every one of my employees just because she hasn't paid her bill. Please advise. thanks in advance.