When you pay by the project (whether 100% upfront, 50% down / 50% on completion, or by the milestone), there is always a conflict of interest between what the c

When you pay by the project (whether 100% upfront, 50% down / 50% on completion, or by the milestone), there is always a conflict of interest between what the contractor wants and what you want. The contractor wants to complete the job with as little work as possible, but you want him to spend as much time as it takes to get it done right. This is why I have learned to always pay by the hour. But whatever works for you..