How to structure the stewardship of a family business with outside capital? ($6–8M acquisition)

I’m evaluating the acquisition of a family business and would appreciate perspective from those who have navigated similar situations or seen similar structures. Context: - $6–8M enterprise value - Experiential / travel business with a strong brand and 30+ year history - 40% gross margins, but highly seasonal cash flow - I am a family member of the owner and view this as a long-term stewardship opportunity, not just a financial investment - I would step in as CEO/operator Constraints / goals: - No seller financing expected - Likely need ~$2–3M equity - I am not contributing meaningful personal capital My priorities are to: - maintain operating/governance control - preserve and grow the business as a long-term, multi-generational asset - reinvest a meaningful portion of cash flow into an adjacent growth vertical, rather than maximizing near-term distributions - partner with like minded investors What structures or investor profiles have you seen work best when the goal is long-term stewardship and reinvestment (vs maximizing distributions or targeting a near-term exit)?