Hello, the contract will take effect as long as it is legally established. According to the situation you described, the parties can confirm the signing of the contract by pressing their fingerprints after others sign it. According to the provisions of China's contract law, as long as the contract is legally established, the contract will take effect. The legal basis is: 1) Contract Law Article 32 If a contract is concluded by the parties in the form of a contract, it shall be signed or sealed by the parties. 2) Article 44 of the Contract Law: Validity of the Contract A legally established contract shall become effective upon its establishment.