I think it comes off as manipulative and controlling too. A boundary is about your actions, not someone else's. In her position, I'd think you were trying to buy my interaction with you with money from the company.
When she says she needs the agreement in place to determine how we move forward, she's probably trying to manipulate you a bit too. So you're locked together in this stalemate.
NMMNG is about being clear on what you need, yes. But your needs don't automatically translate into a demand for someone else.
You need an hour of her time once per week. She's saying no. So you find some other way to meet that need, and you do whatever you think is best or what is legally required of you with your company.
She needs the agreement in place. You either make the agreement, or you don't, and she gets to cope with that unmet need in whatever way she sees fit.
