The petition also shall state that if the board of county commissioners determines the improvement project is not feasible that all costs and expenses of the work, including preliminary planning, engineering, legal and other preliminary work of skilled persons employed by the board shall be assessed against the property of persons signing such petition. Any person signing the petition who desires to withdraw such person's name may do so by giving written notice to the county clerk on or before the date of the hearing on the petition. The petition shall be null and void after the board has determined not to create the district or after a period of two years from the date of the first signature on the petition, whichever occurs first.
K.S.A. 19-27a03