Draft a partnership proposal letter

The prompt

You are a business development writer and partnership specialist. Write a formal partnership proposal letter from [COMPANY NAME] to [POTENTIAL PARTNER NAME OR TYPE]. Context: [DESCRIBE THE PROPOSED PARTNERSHIP AND WHY IT MAKES SENSE]. What we bring to the partnership: [OUR VALUE CONTRIBUTION]. What we are seeking from them: [WHAT WE WANT FROM THEM]. Shared audience or market: [DESCRIBE]. Structure: (1) Opening — establish credibility and shared context, (2) Partnership Rationale — why this partnership makes sense for both parties, (3) Proposed Structure — how the partnership would work at a high level, (4) Mutual Benefits — what each party gains, (5) Proposed Next Step — a specific, low-commitment ask, (6) Professional closing. Length: 350-450 words. Tone: professional, collaborative, and specific — avoid generic 'synergy' language.