The engagement should distinguish practical workplace guidance from legal advice. If the question turns on legal interpretation, formal representation or a dispute that needs legal handling, the consultant should explain when a solicitor is appropriate rather than present a definitive legal conclusion outside the agreed scope.
Discuss the route for urgent questions, the frequency of progress updates and how confidential information will be handled.
Also ask how recommendations will be checked against actual rosters, payroll practices and manager capability. Advice is more useful when supervisors can repeat it accurately in a team meeting and apply it consistently during the next busy week.