This research is a study of International Corporations and Joint Ventures via Foreign Investments and the legislations that limit the flow of foreign investment into countries.This research paper will examine the reasons for limits to foreign investment, which are because of security concerns, prevention of dependency on another country and threat of transfer of technology. There will be a focus on legislations in China (Chinese Law on Sino-Foreign Equity Joint Ventures), Mexico (Mexican Foreign Investment Act), and Nigeria (Coastal and Inland Shipping Act-Cabotage and Nigerian Content Development Act), which will be used as case studies in the exposition of limits to foreign investments, challenges of foreign investments, realities that currently exist, while also tracing the history, mode of registration and agencies with authority over foreign investments in those countries.It concludes with recommendations for countries accepting foreign investments and considerations for foreign investors before embarking on the foreign investment journey.