Hello! Our team has a question to determine whether a lien would be valid and enforceable in a particular situation we have encountered with one of our customers. We are a granite and quartz countertops business in MN. One of the clients has signed a contract with us and was ready to proceed, so as a next step we did our part in making a trip to the client's house and we provided a labor of creating a laser template of the project. However, after that once the labor was already provided, a client decided to cancel the countertops for reasons not controlled by us and now customer is refusing to pay for the labor we have already provided. Could we enforce this payment and claim a mechanical lean ? As we understand, a lien attaches to a property interest on the day the first contribution of labor is made for an improvement, whether or not it is a visible improvement.