My two sisters and I are joint tenants of a home. If they sell their 2/3 interest to one person, the joint tenancy is broken and changes to tenancy in common. What are my rights as only a 1/3 owner?

If my two sisters sell their 2/3 interest in a property where they and I are joint tenants, I understand that breaks the joint tenancy and it would change to tenancy in common. Could the new owner of 2/3 interest now force me off the property or take me to court to control the property because he owns a larger share?