For drafting a contract, surely it is better to have something that asks questions about what you want in the contract, then pulls up the relevant paragraphs of lawyerspeak depending on the answers.
For example, if it was a property lease, you would ask the jurisdiction, whether it was residential / commercial / agricultural, the length of the lease, the amounts due, the names of the parties, and maybe one or two other questions based on answers to the previous questions.
That sort of thing, I'm sure lawyers have been doing since the 1980s.