Amendment to Complaint
San Mateo Superior Court · Adoption
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Last updated June 18, 2026
This form is used by someone who has already filed a lawsuit to make changes or add new information to their original complaint. The person filing it would be a plaintiff (the person who started the lawsuit) who needs to correct mistakes, add new claims, or include additional details that weren't in their original complaint.
This form must be printed and filled by hand, or opened in Adobe Acrobat.