How do siblings start rebuilding trust when they barely know each other anymore?

By showing up together for a small commitment, without trying to solve the bigger relationship first. Kris Kluver, in The Dysfunctional Family Office, has the Mitchell siblings make this exact pact at a coffee shop. They don't trust each other completely. They don't have answers. They don't know what comes next. They commit only to showing up together for the upcoming retreat. That's the entire pact. The point isn't to manufacture closeness. It's to create one shared experience to build on. Trust between adult siblings rarely rebuilds in a single conversation. It rebuilds through repeated small acts of showing up, listening, and not running. Start with one commitment, follow through, then make a second one. Most sibling relationships repair more from accumulated reliability than from emotional breakthroughs.