Legal Expert (Corporate & M&A)
You will review corporate transaction documents, commercial contract scenarios, and AI model outputs. Your feedback will help AI systems learn from careful legal review and clear human judgment.
- Field
- Law
- Where
- United States
- Commitment
- part time
- Hours
- up to 20/week
- Posted
- yesterday
Pay data for your profession: Lawyer AI trainer jobs
How this pay compares
At $105/hr (the midpoint of $80 to $130), this role pays more than 40% of the 157 open law roles with a listed pay range, below the median of $115.
Among platforms with 10 or more priced law roles, micro1 has the highest median ($135/hr across 54 roles) and Mercor the lowest ($110/hr across 15).
OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one yesterday.
Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.
What you would earn at this rate
Per week, before tax
$2,100
Per month, if the work is steady
$9,100
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $2,301 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.
Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn
Open law roles on each platform
The same kind of work, priced on every platform we track, with the best-paid open role on each.
| Platform | Open | Median | Best-paid open role |
|---|---|---|---|
| micro1 | 54 | $135/hr | Domain Researcher, Legal$400k-800k/yr |
| OpenTrain AIthis role | 79 | $120/hr | Civil Rights Attorney for Legal AI Evaluation$140-400/hr |
| Mercor | 15 | $110/hr | US Patent Attorney — Prosecution & Litigation$180/hr |
| Alignerr | 9 | $43/hr | Legal Expert: AI Legal Reasoning Review$75-95/hr |
| Handshake AI | 3 | up to $110/hr3 priced | Legal ProfessionalsUp to $150/hr |
“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.
All 160 open law roles →The full listing
As posted on OpenTrain AI. See the original
The work
You will review corporate transaction documents, commercial contract scenarios, and AI model outputs. Your feedback will help AI systems learn from careful legal review and clear human judgment.
You will follow project guidelines, apply review rubrics, record evidence for your decisions, and keep your judgments consistent across repeated tasks.
- Evaluate AI model outputs related to corporate and M&A legal review.
- Review source materials and model responses against project guidelines.
- Explain legal judgments clearly so the feedback can improve model behavior.
- Document evidence-based decisions and maintain consistent review quality.
What it pays and takes
This is remote, part-time contractor work focused on legal data annotation and AI training tasks. Prior AI training experience is not required, but strong corporate and M&A legal knowledge is essential.
- Pay: $80 to $130 per hour.
- Estimated project earnings: $12,800 to $20,800, based on an OpenTrain assumption of 20 hours per week over the project duration.
- Location: Open to candidates in the United States.
- Language: English fluency.
- Active license to practice law in the United States.
- At least 5 years of experience advising on or structuring M&A transactions, corporate due diligence, or commercial contracts.
- Deep knowledge of US securities law, compliance frameworks, and governance requirements.
- Experience drafting and reviewing a wide range of corporate and transactional documents.
- Strong written and verbal communication, including clear annotation and documentation.
- Experience with legal technology, legal research, or data-driven legal projects is helpful.
How it works
You apply here in about two minutes and finish on the hiring platform. The next step is a short AI interview (technical roles include a coding challenge). Passing it is how you qualify for paid tasks, so take it soon after you are invited.
The hiring platform's application for this job asks for your resume, your LinkedIn profile, your phone number, your location and answers to 5 screening questions.
About AI training work
AI training is the human work behind many artificial intelligence systems. Legal experts review documents and model responses, then provide structured feedback that helps AI systems produce more accurate and useful results.
OpenTrain helps people find AI training opportunities, build a profile, and apply to projects across the industry. Creating an OpenTrain account is free.
From applying to your first payment on OpenTrain AI
- 1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
- 2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
- 3
Funded milestones
The client funds each milestone before work starts.
- 4
First payment
OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.
Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts
Full OpenTrain AI profile: watch-outs and the public record →Pay history
OpenTrain AI has listed this role at $80-130/hr since Nov 10, 2026 with no change.
Across OpenTrain AI's law roles, the median listed pay was $120/hr on Nov 1, 2026 (60 roles) and is $120/hr as of Nov 11, 2026 (79 roles).
What workers report about OpenTrain AI
Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.
Other law roles
- Civil Rights Attorneymicro1$140-400/hr
- Civil Rights Attorney for Legal AI EvaluationOpenTrain$140-400/hr
- Consumer Product Safety Attorneymicro1$140-400/hr
- Corporate Attorney (BigLaw Firms)micro1$140-400/hr
- Corporate Attorney (BigLaw Firms)OpenTrain$140-400/hr
- Energy & Utilities Regulatory Attorneymicro1$140-400/hr