A research-summary handoff should transfer reasoning, not merely a file. Give the new owner the current draft, the source list, the intended audience, and a note on disputed or unverified claims. Identify which citations were checked and which still need verification.
Agree on the next deliverable and review deadline. The incoming owner should confirm access to source material and acknowledge the open questions. Avoid copying restricted documents into a wider channel just to ease the handoff; use approved access instead. Keep the former owner available for clarification until the new owner can explain the summary’s status and the decisions that led to it.