Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to ask relatives to stop unannounced visits, use this factual base: identify the visit, topic, money, photo, event, care task, or comment that needs a limit.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. State what is allowed, what is not, and how you will respond consistently. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Keep the ending honest
Do not threaten access to children or elders as punishment, and do not debate the entire family history. Use safeguarding, legal, domestic abuse, or emergency support where safety, custody, or coercive control is involved. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.