NRS 39.060: Unknown and absent parties may be served by publication of summons; appointment of counsel to represent their interests.

1. If a party having a share or interest is unknown or any one of the known parties reside out of the State or cannot be found, and this fact is made to appear by affidavit, the summons may be served on the absent or unknown party by publication, as in other cases. When publication is made, the summons as published must be accompanied by a brief description of the property which is the subject of the action.

2. The court may appoint an attorney to represent an absent or unknown party.