Sort the documents by what happens when the wording is wrong. A lease clause that's unenforceable usually gets struck and the rest of the lease survives. A statutory notice that's defective often restarts the clock entirely, and in some states it gets the case dismissed and you file again from zero. That's why the pay-or-quit instinct is right. Notice content, service method and cure periods are set by state statute and sometimes by city ordinance on top of it, and templates are where they go stale fastest.
The items that reliably break across state lines: security deposit handling and the itemization deadline, late fee caps and grace periods, mandatory disclosures, entry notice, and anything touching habitability or repair-and-deduct. A drafting tool will produce clean prose for all of these and will produce it with confident wrong numbers, because it's pattern-matching to whichever state's rules dominated its training text. A tool output that cites a statute number is the highest-risk case, since a wrong citation reads as authority to everyone in the room.
One useful structure with your attorney: pay for a marked-up master lease per state plus a one-page memo listing which clauses are statute-driven and can't be edited by you. Then your tool work is confined to the commercial terms. Ask her whether she'll do that as a flat fee, because it's defined work and firms often will.
One more thing on the $600 a year: bill for the annual update whether or not you think anything changed. Legislative changes to notice periods and deposit rules happen at the state level without any announcement reaching landlords.
And if you ever start handing your marked-up leases to other owners you manage for, that crosses into territory where drafting documents for third parties can be unauthorized practice of law depending on the state.