Small businesses get nickel-and-dimed by per-user pricing on helpdesks, forms, signatures and scheduling. One-time software makes the toolset a capital expense instead of a creeping payroll line.
The tool this job usually means renting is PandaDoc, at $19+/user/mo — roughly $228 a year, every year. Contractly does the job for a one-time $29 — running locally on your own machine.