Can I sign a contract for renting a house and property on behalf of the landlord?

Renting and property can't be signed on behalf of the landlord. Because neither the rental nor the property is the landlord himself, without the power of attorney of the landlord, he has no right to sign the contract on behalf of the landlord. Before signing the contract, you must obtain the explicit authorization of the landlord or sign the contract with the landlord himself. This is because in law, only authorized people can sign contracts on behalf of others, otherwise the contracts are invalid.