USCIS is one of at least four filing destinations in a general immigration practice, and a library that stops at USCIS pushes the rest of the work into email and shared drives. Map your caseload to agencies before the demo, then ask for the form list under each.
Labor (DOL)
Employment-based work starts at the Department of Labor's Foreign Labor Application Gateway. The H-1B, H-1B1, and E-3 labor condition application uses Form ETA-9035 and ETA-9035E, with prevailing wage requests on Form ETA-9141 [10]. Permanent labor certification runs on Form ETA-9089 through the same portal and in most cases must be certified before the USCIS petition is filed [11].
State (DOS)
USCIS says "[c]ertain forms relating to visas, passports and travel are available only from government agencies other than USCIS," naming DS-260 and DS-160 among the most-searched [7]. Both are completed in a State Department web application, so ask what a vendor means by DOS support: a data-entry worksheet, a data push, or a stored copy.
Immigration courts (EOIR)
EOIR states that ECAS "is available at all immigration courts and the Board of Immigration Appeals" and that "[u]se of the system is mandatory as of February 11, 2022" [9]. It also warns that "[m]any forms cannot be uploaded online; they must be printed" [8]. If you do removal defense, EOIR coverage is not optional.
What a published coverage claim looks like
Few vendors put the agency list in writing. eImmigration by Cerenade is one that does: its form-management page says "Get USCIS, DOJ, DOL, DOS, EOIR, and DHS forms with one-click access to step-by-step government instructions" and "Access 300+ always-current forms instantly" [12], while its pricing page lists "Form Version Control," "Government Instructions," and "Blank Forms" as standard features on every plan, plus "120+ pre-built case templates," as of August 2026 [13]. Docketwise publishes a shorter version, "Full immigration forms library (USCIS, EOIR, DOL, DOS)," calling it the "Largest immigration form library in legal practice software" without stating a number [14]. Both are vendor claims. Ask every shortlisted platform for the same disclosure: agency list, form count, counting method, and the actual list.