Assess the financial implications of the exit strategy options outlined in the partnership agreement between [Company A] and [Company B]. Focus on the valuation methods for buyouts, the tax impact of each option, and the expected cash flow changes over the next [timeframe]. Provide a detailed financial forecast for each exit option, considering any pre-agreed terms for asset division and debt responsibilities. In addition, discuss the potential impact on shareholder value and how this should be communicated to stakeholders.