"Rogoff told members of the House Transportation Committee that doing so could endanger the agency’s ability to carry out the $54 billion expansion approved by voters last fall."

How is that relevant? If the project needs other sources of funding worked out to proceed, then start figuring out what those other sources of funding are going to be.

Fraud does not become acceptable simply because honesty is inconvenient. You're using fraudulent valuations. That has to be fixed.

All you're doing by fighting is wasting resources by forcing the matter into an eventual state supreme court case, where Sound Transit will lose, because state law says excise taxes have be based on actual fair market value.