Your work order should include payment provisions or estimates of what the work will cost. Otherwise, even if you do perform the work--and the work order could serve as evidence of what was ultimately done--you can get into a dispute about the dollar value of the work performed.
Nina L. Kaufman, Esq. is an award-winning New York City attorney, edutainer and author. Under her Ask The Business Lawyer brand, she reaches thousands of entrepreneurs and small business owners with her legal services, professional speaking, information products, and LexAppeal weekly ezine. She also writes the Making It Legal blog.