Regarding the specific opinions on stamping and signing, this may be different in different regions and different institutions. Generally speaking, the development object needs to sign the form and affix his personal seal or signature to show that he is responsible for the authenticity and accuracy of his personal situation.
For family members, they may need to provide a written opinion, including their understanding and evaluation of development goals. In addition, if family members hold public office or belong to a specific group (such as party member, cadres, etc.). ), their opinions may have higher reference value.
Please note that the specific operating procedures and requirements should refer to the operating guidelines and relevant policies and regulations, and follow the requirements of regions and institutions. If you have specific situations or questions, I suggest you consult the staff of relevant units or government departments to get more accurate answers.