New Civil Code Article 1800
The partner who has been appointed manager in the articles of partnership may execute all acts of administration despite the opposition of his partners, unless he should act in bad faith; and his power is irrevocable without just or lawful cause. The vote of the partners representing the controlling interest shall be necessary for such revocation of power.
A power granted after the partnership has been constituted may be revoked at any time. (1692a)