* Revenue figures are market-based estimates only and are not guarantees of income. Actual results will vary based on execution, market conditions, and individual effort. This is not financial or investment advice.
How the agent runs it
Subcontractors and material suppliers submit unpaid invoice data via a web intake form; the orchestrator agent fans out tasks to specialist agents who research lien deadlines by jurisdiction, draft lien documents, file them electronically with county recorders, and send demand notices to property owners — all within 24 hours of intake. The billing agent invoices clients per filing and tracks payment, while the compliance agent monitors response deadlines and escalates to a human attorney partner only when a lien is formally contested in court. The business runs as a subscription plus per-filing fee model with zero human involvement in routine filings.
Who this is for
Ideal for someone with a background in construction law, paralegal work, or legal tech who understands lien deadlines and jurisdiction risk. They do not need to be a licensed attorney but must be able to vet the attorney partnership and manage edge-case escalations. This suits a solo operator who wants a high-margin, recurring-revenue legal-adjacent service without client-facing service labor.
Market opportunity
The U.S. construction industry loses an estimated $40–60 billion annually to nonpayment disputes, and mechanics liens are the primary legal remedy available to subcontractors and suppliers. The market is massively underserved at the SMB level — most small subs cannot afford construction attorneys and use no lien service at all. The rise of e-filing infrastructure in major U.S. counties since 2021 now makes autonomous filing technically feasible at scale for the first time.
Boss agent: NEXUS (Network Execution & Case Oversight Supervisor)
NEXUS ingests every new case from the intake form, assigns it to the correct specialist agents in sequence, enforces jurisdiction-specific deadline SLAs, and halts any filing flagged as incomplete or legally ambiguous pending human review.
- ■ No lien document is submitted to a county recorder without a completed three-point validation: jurisdiction rule match, amount verification, and property owner identity confirmation
- ■ Any case where the filing deadline is fewer than 72 hours away is immediately escalated to the human operator queue with a priority alert
- ■ All client communications referencing legal outcomes must include a standard disclaimer and never constitute legal advice — NEXUS strips any non-compliant language before delivery
The agent team
Human touchpoints
// the only things that still need you
- 👤 Signing the attorney partnership agreements and any state-required registered agent or document preparation company registrations that require a human signatory
- 👤 Approving filings in counties where e-filing is unavailable and a physical document must be mailed or hand-delivered to a county recorder's office
- 👤 Reviewing and authorizing any case escalated to the supervising attorney network when a lien is formally bonded over or contested in litigation
- 👤 Handling banking movements above $10,000 and any Stripe payouts or disputes flagged for manual review by the payment processor
Tech stack
Monetization
Clients pay a $149/month platform subscription plus $89 per lien filed; contested lien escalations are referred to a partnered construction attorney for a 20% referral fee, adding a passive revenue layer.
Key risks
- → Jurisdiction-specific lien law changes frequently — an outdated deadline table could invalidate a client's lien rights and create liability
- → E-filing APIs vary wildly by county; many rural counties still require physical filing, creating gaps in the autonomous pipeline
Getting started
- 1 Map lien laws for your first 10 jurisdictionsChoose 10 high-construction-volume counties (e.g., LA, Dallas, Miami-Dade, Cook County) and document their exact preliminary notice deadlines, filing windows, and e-filing portals. This jurisdiction database is the core IP of the business and must be accurate before any agent touches a real filing.
- 2 Recruit and contract a supervising attorneyPartner with a licensed construction attorney in each target state to serve as the escalation handler for contested liens and to review your document templates for compliance. Structure this as a referral fee agreement, not employment, to keep overhead low.
- 3 Build the Airtable case ledger and deadline engineCreate an Airtable base that ingests intake form data and auto-calculates filing deadlines by jurisdiction using your mapped lien law data. This becomes the single source of truth that all agents read from and write to, preventing missed deadlines.
- 4 Wire Claude Managed Agents to the document and filing pipelineConfigure the drafter agent to populate jurisdiction-specific lien templates from intake data, and connect the filing agent to county e-filing APIs or flagging it for the human queue when e-filing is unavailable. Test with 20 synthetic cases before going live.
- 5 Launch with a pilot cohort of 10 paying subcontractorsRecruit 10 subcontractors through construction trade Facebook groups or NECA/SMACNA chapter forums and offer the first three filings at half price in exchange for testimonials and edge-case feedback. Use this cohort to stress-test every agent handoff before opening to the public.
// done for you
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