Any local improvement may be initiated upon a petition signed by the owners of property aggregating a majority of the area within the proposed district. The petition must briefly describe:
If any of the property within the area of the proposed district stands in the name of a deceased person, or of any person for whom a guardian has been appointed and not discharged, the signature of the executor, administrator, or guardian, as the case may be, shall be equivalent to the signature of the owner of the property on the petition. The petition must be filed with the clerk or with such other officer as the city or town by charter or ordinance may require.
RCW 35.43.120