Article 1878 ng Civil Code: Special power of attorney

Special powers of attorney are necessary in the following cases: (1) To make such payments as are not usually considered as acts of administration; (2) To effect novations which put an end to obligations already in existence at the time the agency was constituted; (3) To compromise, to submit questions to arbitration, to renounce the right to appeal from a judgment, to waive objections to the venue of an action or to abandon a prescription already acquired; (4) To waive any obligation gratuitously; (5) To enter into any contract by which the ownership of an immovable is transmitted or acquired either gratuitously or for a valuable consideration; (6) To make gifts, except customary ones for charity or those made to employees in the business managed by the agent; (7) To loan or borrow money, unless the latter act be urgent and indispensable for the preservation of the things which are under administration; (8) To lease any real property to another person for more than one year; (9) To bind the principal to render some service without compensation; (10) To bind the principal in a contract of partnership;

(12) To create or convey real rights over immovable property; (13) To accept or repudiate an inheritance; (14) To ratify or recognize obligations contracted before the agency; (15) Any other act of strict dominion.

When a sale of a piece of land or any interest therein is through an agent, the authority of the latter shall be in writing; otherwise, the sale shall be void.