During a property market downturn, a binding Provisional Agreement for Sale and Purchase (PASP) was signed for a portfolio of various commercial units in Tsim Sha Tsui, Kowloon. Despite the completion date being extended multiple times over a span of two years, the deal eventually fell through. The vendor approached us to conduct a valuation of the commercial units, specifically assessing the price difference between the date of signing the PASP and the completion date in the context of the market downturn. This valuation was crucial to determine the potential for litigation and pursue compensation for the incurred loss. Notably, during the interim period, the entire portfolio had been leased to a long-term occupier, further complicating the valuation considerations. Although the valuation report was intended for internal use, we ensured its meticulous preparation to meet the rigorous standards of the court, should our client decide to proceed with legal action.