It is my understanding that the last date of furnishing is the last day worked on the job. However, for us, we are obligated to do warranty work for 1yr after the date of sale of the house. So if we need to file a lien, are we supposed to wait until the 1yr is up? Or can we use the last date we were on the job site? Because, in reality, we could visit the job site multiple times within that warranty year or we may never visit that job again. If we never have to visit the job site again, the Last Date of Furnishing would be more than the 90 days from the last day we were there and therefore would no t be able to file a lien and we would loose our payment. How should we proceed in instances such as this?