"About Notarization and Authentication
3. Q: I'm a Chinese citizen and want to have my cousin take care of my
property in mainland of China. How can I do that?
A: You can either come to this office in person and do a Power of
Attorney or have your Power of Attorney legalized by the Secretary of
State and then have it authenticated by this office. For detailed
information, please refer to Notarization and Authentication in Chinese
Version." http://www.chinaconsulatesf.org/eng/qianzhen/t42280.htm
中国领事认证申请指南 http://www.chinaconsulatesf.org/chn/qianzhen/gzrz/t736243.htm