合同签字盖章就有效吗？-合同法律纠纷法律援助-法律咨询免费平台-国际律师联盟

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问题	合同签字盖章就有效吗？
释义	法律分析：不是。合同仅仅签字盖章还不一定发生效力，还必须满足以下要件：(1)行为人具有相应的民事行为能力；(2)意思表示真实；(3)不违反法律或社会公共利益；(4)民事法律行为可以采用书面形式、口头形式或者其他形式。法律依据：《中华人民共和国民法典》第一百四十三条具备下列条件的民事法律行为有效：（一）行为人具有相应的民事行为能力；（二）意思表示真实；（三）不违反法律、行政法规的强制性规定，不违背公序良俗。
随便看	怎么撤销购买二手房合同已签二手房合同时如何撤销合同已签二手房合同时如何撤销合同二手房买卖合同怎样解除解除二手房购房合同的程序二手房买卖合同如何解除已签二手房合同时如何撤销合同？二手房交易合同能否解除？已签二手房合同时如何撤销合同？二手房买卖合同解除怎么办二手房买卖合同解除怎么办二手房买卖怎样解除合同？二手房买卖合同如何解除二手房买卖合同如何撤销二手房买卖合同如何撤销？二手房买卖合同如何解除合同怎样能撤销二手房买卖合同二手房买卖合同如何解除合同雨水管漏水物业负责吗雨水管道漏水是物业负责吗雨水管道漏水是物业负责吗家里漏水物业管吗大连etc在哪里充值怎么投诉抄水表的？雨水管道漏水是物业负责吗？ contract for processing with customer's samples contract for processing work contract for procurement of postal delivery in rural areas contract for production and sales of plastics contract for publication contract for publication of books contract for publishing books contract for purchase and sale of crop seeds contract for purchase and sales of clothing contract for purchase and sales of textiles contract for purchase in advance contract for purchase of fruits on order contract for purchase of ginned cotton contract for purchase of materials contract for purchase of raw materials contract for purchases struggle struggle against hegemonism struggle against internal larceny struggle for national independence stub stub book of corporate bonds stub of a check student consul student's identity card

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