Do we need a Vantage Landscape first?
Yes. Live re-verifies the ledger a Vantage build produces. If another firm built your landscape, the on-ramp is a Vantage build that converts it into a verified ledger; ask on the scoping call.
What counts as a material change?
A change to any monitored source that alters a coverage position, evidence requirement, code status, or payment rate relevant to your product. Cosmetic policy re-issues get logged quietly.
Can we cancel?
Monthly billing, cancel anytime. The final refreshed landscape is yours to keep.