A marriage guarantee that meets the following conditions has legal effect:
1, and the content of the letter of guarantee is expressed in the true meaning of the actor;
2. The content of the guarantee does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs;
3. The subject of the letter of guarantee must have corresponding capacity for civil conduct.
Legal objectivity:
Article 143 of the Civil Law of People's Republic of China (PRC) is valid if a civil juristic act meets the following conditions: (1) The actor has corresponding capacity for civil conduct; (2) the meaning is true; (three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs. Article 144 of the Civil Law of People's Republic of China (PRC) A civil juristic act carried out by a person without civil capacity is invalid.