Define what the logo must do

Explain the business, audience, positioning and where the identity will actually appear.

Ask what is included

Number of initial concepts.
Revision rounds.
Primary logo.
Alternate lockups.
Color variations.
Vector source files.
Usage guidance.

Review identity work, not isolated images

Look for evidence that the designer can build coherent marks and make choices appropriate to different brands.

A logo project is a decision process, not a drawing contest.Evaluate the designer's reasoning as well as the final images.

Confirm ownership and source files

Make rights, editable files and third-party asset use explicit before completion.