Well, if he purchased the property, then it's his to sell and do with as he pleases. But on the otherhand, if you two live in a community property state, you could end up with half regardless, but there some exceptions. I must tell you that although you are separated, some laws will consider that your marriage is over after living apart for one year or more, because some legal separations (separations on paper) stipulates that the husband and wife can live as if they are not married. Nonetheless, Here is a website that lists some information about taxes and community property states . If you live in one of the community property states, still consult an attorney to determine your rights, although you've been separated 50 years, and the property is out of the country.