I recently had an extensive restoration renovation project. With many changes and additional tasks added throughout the job, there was never a "set completion date". At nearing completion My company was given a 2-day completion date of Jan 1st. We had the CO from the building department 2 weeks prior but the owner was out of town and not readily available to answer questions pertaining to completing some of the work. So the job lagged for 2 weeks the owner got upset and denied us access back to the property and refuses to pay his bill. IMO there was only a day of work left. He's paid maybe 85% of the contracted price.