Set up your firm voice

Upload past filings your firm is proud of, the ones that show your best drafting and argumentation. Petria reads up to five samples per lane during onboarding and analyzes them together rather than one at a time, so the resulting voice is a blend of your strongest work rather than whichever file you happened to upload last.

Pick complete narrative work: full petitions, full support letters, full briefs. Not cover letters, blank forms, or heavily redacted drafts. Petria needs continuous prose to learn tone, sentence rhythm, and how your firm builds an argument. A document that is mostly boilerplate or mostly blacked out gives the model almost nothing to learn from, and can actively teach the wrong lesson: that your firm writes in fragments.

What gets learned differs by tier. Standard learns diction and tone only: how your firm phrases things, at what register, with what sentence density. Pro adds emphasis on top of that same tone learning: which arguments your firm tends to lead with and lean on for a given criterion. Enterprise can go further still with an approved outline that governs section order, headings, and where exhibits land in the document (see Why approved structure is Enterprise). Voice and structure are learned and stored separately, so approving a structure does not change or override the tone Petria already learned from your samples.

The Analyze step that turns your samples into a learned voice runs in the background and can take a few minutes for a firm with samples across several lanes, since each petition type sharing a lane gets its own analysis pass off the same uploaded samples. You do not need to keep the tab open. Check back or refresh the setup screen and it will show as complete once every type finishes.

This step is optional on Standard and Pro. Pro se filers, a brand-new firm, or anyone who just wants to see a job run can skip it entirely (there is a Skip for now option beside Analyze): with no samples uploaded, Petria falls back to its own default, a standard professional writing style, the voice equivalent of the standard structure every firm starts from. There is no firm-specific overlay on top of it yet, but nothing blocks the job and nothing is left unstyled. You can always come back and add samples later, and future jobs on that lane pick up your firm's voice from then on. Enterprise is different: see "Why approved structure is Enterprise."

• Immigration lane: EB-1A, NIW, O-1A, LMIA, and similar mainline work
• Family lane: family-based matters your firm files often
• US: humanitarian lane for VAWA, U/T visas, and related work
• Canada: refugee lane for BOC narrative work