Short answer. Yes. If you delegate your duties as an officious manager to someone else, Article 2146 makes you liable for that person's acts — though the delegate also answers directly to the owner. And where two or more people manage together, their liability is solidary, unless they stepped in to save the business from imminent danger.
What the law says
If the officious manager delegates to another person all or some of his duties, he shall be liable for the acts of the delegate, without prejudice to the direct obligation of the latter toward the owner of the business.
Civil Code, Article 2146 — Delegation by the Gestor. Read the full provision →
What the law says
The responsibility of two or more officious managers shall be solidary, unless the management was assumed to save the thing or business from imminent danger.
Civil Code, Article 2146 — Delegation by the Gestor. Read the full provision →
Delegating does not shed responsibility
Having taken charge of another's business without being asked, you cannot lighten your exposure simply by handing the work to someone else. Article 2146 provides that if the officious manager delegates to another person all or some of his duties, he shall be liable for the acts of the delegate. The person who assumed the management remains answerable for how it is carried out, whether he does the work himself or passes it on. Delegation redistributes the labour, not the accountability, and the owner can still look to the original manager for the delegate's failings.
The delegate is also directly bound
Your continuing liability does not let the person you brought in off the hook. The same clause preserves the delegate's exposure without prejudice to the direct obligation of the latter toward the owner of the business. The delegate owes the owner directly for his own conduct, so the owner has two people to pursue rather than one. This matters where the manager who delegated is unable to make good the loss: the owner is not confined to him, but may proceed against the delegate whose act caused the harm.
Two or more managers answer solidarily
Where the management is shared from the outset, the article tightens the owner's position further: the responsibility of two or more officious managers shall be solidary. Solidary liability means the owner can recover the whole of his loss from any one of the co-managers, leaving them to sort out their shares among themselves. He need not divide his claim or prove who did what; each is liable in full. For anyone tempted to manage another's affairs in company, that is a significant risk — a co-manager's fault becomes a debt any of them can be made to pay entirely.
The rescue exception
The solidary rule bends for those who intervene in a crisis. It does not apply where the management was assumed to save the thing or business from imminent danger. People who step in together to prevent an imminent loss — to salvage goods, to stop a business collapsing — are not held to the same stern joint-and-several standard as those who simply took over an untroubled concern. The law does not want the threat of full solidary liability to deter genuine rescue, so managers acting to avert imminent danger answer on a gentler footing.