Adjusting status for an immigrant parent of a U.S. citizen involves several steps and documents. Here's a general checklist based on USCIS guidelines:

Adjustment of Status Checklist for an Immigrant Parent of a U.S. Citizen:

1. Form I-485 (Application to Register Permanent Residence or Adjust Status)

2. Form G-28 (Notice of Entry of Appearance as Attorney) (if applicable)

3. Form I-693 (Report of Medical Examination and Vaccination Record)

4. Two passport photos of the applicant

5. Proof of relationship to the U.S. citizen child (e.g., birth certificate of the U.S. citizen child, marriage certificate if applicable)

6. Proof of one year continuous presence in the U.S. (e.g., employment records, school records, medical bills, lease agreements)

7. Proof of any absences from the U.S. (e.g., travel records, passport pages)

8. Copy of the approved I-130 (Petition for Alien Relative)

9. Copy of current I-94 card

10. Copy of birth certificate (with certified translation if applicable)

11. Proof of fee payment (or fee waiver documentation if applicable)

12. Any other documents requested by USCIS

Steps to Follow:

1. Submit Form I-485 and supporting documents to USCIS.

2. Attend a biometrics appointment at an Application Support Center (ASC).

3. Prepare for the USCIS interview by gathering all necessary documents and evidence.

4. Attend the USCIS interview at a local office.