Section 17
SEC. 17. Form and Registration of Contract.&mdashShould the parties decide to reduce their agreement into writing, the agricultural leasehold contract shall be drawn in quadruplicate in a language or dialect known to the agricultural lessee and signed or thumb-marked both by the agricultural lessee personally and by the agricultural lessor or his authorized representative, before two witnesses, to be chosen by each party. If the agricultural lessee does not know how to read, the contents of the document shall be read and explained to him by his witness. The contracting parties shall acknowledge the execution of the contract before the justice of the peace of the municipality where the land is situated. No fees or stamps of any kind shall be required in the preparation and acknowledgment of the instrument. Each of the contracting parties shall retain a copy of the contract. The justice of the peace shall cause the third copy to be delivered to the municipal treasurer of the municipality where the land is located and the fourth copy to the Office of the Agrarian Counsel. Except in case of mistake, violence, intimidation, undue influence, or fraud, an agricultural contract reduced in writing and registered as hereinafter provided, shall be conclusive between the contracting parties, if not denounced or impugned within thirty days after its registration.