Administrative Code of 1987
Section 57. Conveyances and Contracts to which the Government is a Party. - Any deed, instrument or contract conveying the title to real estate or to any other property the value of which does not exceed fifty million pesos (P50,000,000) awarded through public bidding, and five million pesos (P5,000,000) awarded through negotiation, shall be executed and signed by the respective Secretary on behalf of the Government of the Philippines. Where the value of the property exceeds the aforesaid ceilings, such deed, instrument or contract shall be executed and signed by the President of the Philippines on behalf of the Government.