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As you are a limited company, the Articles of Association will provide what is needed for the company to take a decision but it is likely that a majority will rule. I assume the company owns the land and not the individuals. That being the case you can convene a formal meeting and pass a resolution to sell the land by majority vote. So check your Articles and follow the correct company law procedures and you should be OK. Happy to discuss further. I hope that helps. Please leave a positive rating so that I am credited for my time.