The DA's "Land of Opportunity" programme supports the "willing buyer, willing seller" principle, though it also allows for expropriation for reform purposes in certain limited circumstances. The party has been critical of the resources that government has allocated to land reform, claiming that government has not been sufficiently active in buying up land that comes onto the market. Though the DA believes this could speed up the pace of land reform, their policies have been vocally criticised by members of the Tripartite Alliance. Land Affairs Minister Thoko Didiza accused the DA of attempting to "stifle" land reform, while the South African Communist Party contended that the DA's policies overly favoured big business. In a speech at the DA's national congress in April 2018, DA Leader, Mmusi Maimane, praised DA Western Cape Provincial Leader, Bonginkosi Madikizela, for overseeing the delivery of 91 000 title deeds in the province and allowing residents to have full title deeds to their homes.