Cap. 16 · Civil Code (Cap. 16)
Cap. 16 Art. 1013Duties of negotiorum gestor.
Sub-title II
Where a person, being of age and capable of contracting, voluntarily undertakes the management of the affairs of another person, he shall be bound to continue the management which he has begun and to carry it out until the person on whose behalf he has acted is in a position to take charge of such management himself, and to do everything which is incidental to or dependent upon those affairs, and he shall be liable to all the obligations which would arise from a mandate.