It carries no fiduciary duty and no legal exposure. That’s exactly why a busy senior operator can say yes, and we’d rather state it plainly than have you work it out three emails in.
The governing board commitment is specified at 25 to 35 hours per year, and the number is the pitch. The advisory council commitment is not yet specified and it needs to be.
Recommend something meaningfully lighter, in the range of four meetings a year plus ad hoc availability. Confirm with Tiffany before publishing.