I've had a customer for a few months in which I do basic maintenance cut, edg, trim, and blow Biweekly service and left an invoice for $50. I always put a due date on the invoice and IO give all of my new customers 10 days for payment. This customer was late the first month but did pay after making a phone contact. Now, I left an invoice about 3 weeks ago and still no payment. I've sent a past due invoice and have made a phone contact. I left her a phone message about payment for the invoice and the customer hasn't returned my phopne call or I haven't recieved payment. Here's my question Can I legally put a lien against her property that I provided service at? I mean how could I prove that I provided the service since this is a still new customer? Any advice would be greatly appreciated.