N-644 — Application for Posthumous Citizenship
N-644 support helps organize an application for posthumous citizenship for an eligible deceased veteran. This is evidence-heavy and timing-sensitive, so final materials require review before they are ready.
What we help with
We collect applicant identity and authority, decedent identity, military service, death, relationship, authorization-affidavit, and supporting-evidence details.
Review before materials are ready
A Human Review Specialist checks relationship or representative authority, qualifying service, death-causation evidence, deadline/timing, and current USCIS instructions before materials are ready.
You review, print, sign
You review every page, print and sign where required, and decide whether and when to submit. Immigration Oasis does not automatically file with USCIS.
Review checks before materials are ready
- Confirm the application is filed no later than two years after the decedent's death unless current law/instructions provide otherwise.
- Confirm applicant relationship or representative authority and any required authorization affidavits or appointment documents.
- Confirm qualifying active-duty service, death-causation evidence, enlistment/admission requirements, translations, and supporting documents.
- Reviewed materials should not be made available until required review is complete, and complex or disputed authority, service, or death-causation issues should be reviewed by an attorney or high-risk reviewer.
What you receive
Immigration Oasis uses your answers and the required review steps to help prepare appropriate reviewed materials, a checklist, a worksheet, or form draft for this path when supported.
You review everything, print, sign where required, and decide whether and when to submit it. Immigration Oasis does not automatically file with USCIS.