Article 1432 of the French Civil Code
When one of the spouses takes over the management of the other’s own property, with the other’s knowledge, and nevertheless without opposition on his part, he is deemed to have received a tacit mandate, covering acts of administration and enjoyment, but not acts of disposal. This spouse is answerable to the other for his management as a mandatary. He is, however, accountable only for existing fruits; for those he may…