Posted over 30 days ago. Roles like this often stay open for a while, so it's still worth applying.
Domain Expert – Legal (Lexis+) at Mercor
posted 3 months agoDomain Expert – Legal (Lexis+ Research) | $76–$120/hr | Worldwide Remote
Mercor is seeking a seasoned legal professional with deep, hands-on expertise in Lexis+ to serve as a Domain Expert. In this role, you will evaluate and validate AI-generated legal research outputs, ensuring accuracy, currency, and proper citation across cases, statutes, and regulations. This is a flexible contractor engagement billed hourly, ideal for practicing attorneys, law librarians, or experienced legal researchers.
Key Responsibilities
- Verify that every cited case, statute, and regulation represents good law using Shepard's Citations Service; identify and flag negative treatment
- Detect non-existent or misdescribed cases; confirm quotes, holdings, and pin cites are accurate
- Assess research completeness — identify missed controlling authority and ensure multi-jurisdiction splits are properly distinguished
- Confirm the correct version of a law was in force on the relevant operative date
- Distinguish binding from persuasive authority and enforce a verify-before-finalize standard
Required Lexis+ Knowledge
- Citators: Shepard's Signal indicators (red, orange, yellow, green, blue), Depth of Discussion, overruling risk; distinguishing overruled, superseded, depublished, and distinguished-on-facts authority
- Search Methods: Terms-and-connectors (Boolean) vs. natural-language search; segment searching; Lexis Headnotes, Case Summaries, and Case Notes
- AI-Assisted Tools: Lexis+ with Protégé — litigation issue filters, Shepard's Graphical (visual case history), and Protégé natural-language search
- Secondary Sources: Matthew Bender treatises, ALR, Am. Jur., practice guides, Practical Guidance (Lexis Practice Advisor), 50-state surveys
- Statutes & Regulations: Annotated statutes/regs, version comparison, historical and effective-date versions, currentness verification
- Analytics & Records: Litigation Analytics (Lex Machina), Brief Analysis, dockets, CourtLink, PACER
Requirements
- Active, frequent use of Lexis+ — weekly or more — for substantive legal research in a current or recent professional role
- 2+ years of professional legal research experience
- Reflexive Shepard's/KeyCite proficiency; ability to spot bad cites, misstated holdings, or superseded statutes on sight
- J.D. with bar admission, MLIS/law librarian credential, or equivalent research-intensive experience
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.