Saint Kitts & Nevis also acquires foreign direct investment from their unique citizenship by investment programme, outlined in their Citizenship Act of 1984. Interested parties can acquire citizenship if they pass the government's strict background checks and make an investment into an approved real estate development. Purchasers who pass government due diligence and make a minimum investment of US$400,000, into qualifying government approved real estate, are entitled to apply for citizenship of the Federation of Saint Kitts and Nevis. Many projects are approved under the citizenship by investment programme, and the main qualifying projects of interest can be found within the Henley Estates market overview .