Define the WordPress assignment
Theme setup or custom theme.
Plugin configuration.
Custom plugin development.
Content migration.
Performance work.
Commerce functionality.
Hosting or deployment.
Ongoing maintenance.
Ask about maintainability
A site should not require the original freelancer for every future text or image change unless that dependence is intentional.
Protect administrative control
Keep domain, hosting and primary WordPress administrator access under business control.
The easiest site to launch is not always the easiest site to own.Understand what custom code, plugins and dependencies remain after handoff.
Document paid dependencies
Premium plugins, themes and services may require recurring licenses. Know who owns those subscriptions.