Shareholder Agreement for UK limited company

I require legal expertise to review and finalize a Shareholder Agreement for a UK limited company with multiple individual shareholders. The key objectives are to formalize ownership of all intellectual property created on behalf of the company, and to institute protective provisions surrounding shareholder departure. 'Good leaver' and 'bad leaver' clauses must be incorporated addressing scenarios where a shareholder voluntarily or involuntarily exits their position. Additionally, preventive measures are necessary to maintain the existing control structure should any shareholder elect to sell a minority stake to an outside entity. The agreement must be comprehensive yet straightforward, crafted to suit the needs of a small business with big ambitions. Capabilities in contract law, corporate governance, and startup financing would serve the reviewer well in evaluating the current draft and proposing any beneficial refinements or suggested additions. The finalized document requires accuracy, clarity and air-tight protection of the company's interests going forward into the next phase of its growth.

Briefing document attached