Can you appraise a whole collection?
In short: Yes. A collection report covers every item under one scope and one definition of value, priced as a flat fee tiered by item count, with a timeline stated in the scope.
Collections are where a written appraisal earns its keep: one document that lists every card, its condition and its value, with a total you can hand to an insurer, an executor or a family.
For a large collection being insured, insurance documentation may fit better. It is built around the schedule format agents ask for and can be updated each year.
What to send first
The total count, which cards are graded, and the purpose of the report. Photographs help me scope it: front and back, flat on a matte surface. For a large collection, a shared folder link works better than attachments; see why I ask for links, not files.
How the fee and timeline are set
A collection report is a flat fee, tiered by item count, and the scope states the timeline before you agree; see do large collections cost less per card?. In person, the inspection happens at your home or an agreed venue across the Yuma area. Elsewhere, the remote clinic quotes collections as a set. Photographs are kept with the report under the retention and consent policy.