Nebraska Statutes: 25-202
25-202. Actions for the recovery of title or possession of real estate or foreclosure of mortgages. (1) An action for the recovery of the title or possession of lands, tenements, or hereditaments, or for the foreclosure of mortgages thereon, can only be brought within ten years after the cause of action accrues. No limitation shall apply to the time within which any county, city, town, village, other municipal corporation, public power and irrigation district, public power district, public irrigation district organized under Chapter 70, article 6, irrigation district organized under Chapter 46, article 1, or natural resources district may begin an action for the recovery of the title or possession of any public road, street, or alley, other public or political subdivision grounds or lands, or city or town lots.
(2) For the purposes of this section as relates only to the rights and interests of subsequent purchasers and encumbrancers for value:
(a) The cause of action for foreclosure of the mortgage accrues on the last date of maturity of the debt or other obligation secured by the mortgage as the date is stated in or is ascertainable from the filed record of the mortgage or the filed record of an extension of the mortgage;
(b) If no date of maturity is states or is ascertainable from the filed mortgage or the filed extension, the cause of action for foreclosure of the mortgage accrues no later than twenty years after the date of the mortgage; or
(c) If the mortgage creditor files an affidavit to the effect that the mortgage is unpaid and is still a valid lien, the affidavit is filed before the cause of action is barred under this section, and the affidavit is filed for record in the office of the register of deeds; the cause of action is not barred until ten years after the date the affidavit is filed. The period of ten years shall not be extended by nonresidence, legal disability, partial payment, acknowledgment of debt, or promise to pay.