When the estate of any tenant for life or years in any undivided part of the property in question was admitted by the parties or ascertained by the court to be existing at the time of the order of sale, and the person entitled to such estate was made a party to the suit, the estate may be first set off out of any part of the property and a sale made of such parcel subject to the tenants prior unsold estate; but if in the judgment of the court a due regard to the interest of all the parties requires that such estate should also be sold, the sale of the estate may be ordered.