For Contractors, Subcontractors & Suppliers

Protect Your Payment Rights — Notices + Waivers, Automated

Two things destroy your lien rights: missed notice deadlines and signing bad waivers. LienVault protects you from both.

  • Never miss a prelim deadline
  • Send certified notices fast
  • Waiver safety checks (+ QuickBooks validation)
All 50 states supportedNo credit card requiredSetup in 2 minutes

Two Pillars of Lien Rights Protection

Your lien rights can be lost two ways: missing a notice deadline, or signing a bad waiver. We protect you from both.

Preliminary Notices

  • Deadline engine with 50-state rules
  • Generate state-compliant notices
  • Mail via USPS Certified Mail
  • Full audit trail & proof of service

Waiver Protection

  • Detect waivers in your emails
  • Extract terms, amounts & dates
  • Flag risky unconditional waivers
  • Validate with QuickBooks (when connected)

QuickBooks Integration: Connect QuickBooks Online to automatically validate waiver amounts against actual payments.

How It Works

From Email to Protected in 60 Seconds

No data entry. No deadline tracking. No post office runs. Forward to your inbox and let AI do the work.

STEP 1

Forward Your Contract

Forward contracts, bids, or POs to your inbox—job created automatically.

Works with any email
Upload PDFs directly
AI extracts all details

Private & secure—only you can send to it

STEP 2

AI Creates Your Job

AI reads the email, extracts property address, owner, GC, and contract details. Calculates your state-specific deadline. You review and approve.

Job Details Extracted✓ Automatic
Deadline Calculated✓ All 50 states
Notice Generated✓ State-compliant
STEP 3

Notice Sent. Rights Protected.

Your notice is printed and mailed via USPS Certified Mail with tracking. Fulfilled by certified mailing partners.

USPS Certified
Tracking Number
Proof of Delivery
ENTERPRISE

Want 99% Hands-Free Protection?

Connect AI directly to your team's inboxes. Every bid, contract, and PO is detected automatically—no sending required. Your team works, LienVault protects.

Learn about Enterprise
Email Integration

Forward a Contract. Job Created Instantly.

Forward contracts, bids, or POs to your inbox. AI extracts job details instantly—no typing, no data entry.

  • Works with any email provider
  • Send from any email app or device
  • AI extracts addresses, owners, GCs, amounts
  • Deadlines calculated for all 50 states
  • Review and approve before sending

Private & Secure

Forwarding mode: Only emails you send are processed.
OAuth mode: We scan for construction-related emails only.
We extract job data and discard original email content after processing.

To:your-inbox@lienvault.ai
From:you@yourcompany.com
Subject:Fwd: Bid Invite - 123 Main Street
AI extracts job details...
Job Created
Property123 Main Street, Phoenix AZ
OwnerABC Properties LLC
GCLiengaurd Construction
Contract$185,000
Deadline20 days (Dec 28)

All 50 States + DC Covered

CA
TX
FL
AZ
NV
NY
PA
IL
OH
GA

+ 41 more jurisdictions with full statutory forms

Residential project deadlines
Commercial project deadlines
Public works & bond claims
Business day calculations
Notice Management

50 States. 50 Different Rules. One Click.

California is 20 days. Texas is 15. Some states like Arizona have strict service requirements. We know every rule in every state—so you don't have to Google "preliminary notice deadline" ever again.

  • Every state's lien law built in
  • Deadlines calculated from first furnishing
  • Business days vs calendar days handled
  • Right recipients: owner, GC, lender
  • Forms match state requirements exactly
Certified Mail Delivery

Printed. Mailed. Tracked. You Get Proof.

No trips to the post office. No certified mail forms. Your notice is printed and mailed via USPS Certified Mail with tracking. Fulfilled by certified mailing partners.

  • AI generates and sends automatically
  • USPS Certified Mail with tracking
  • Real-time delivery updates
  • Proof of service PDF for your records
  • Return receipt confirmation

Notice Delivered

Tracking #9400111899223456789012

Notice Generated

Dec 5, 2024 9:14 AM

Sent to Print

Dec 5, 2024 9:15 AM

In Transit to USPS

Dec 5, 2024 2:30 PM

USPS Accepted

Dec 6, 2024 8:45 AM

Out for Delivery

Dec 9, 2024 7:22 AM

Delivered

Dec 9, 2024 11:47 AM

Waiver Review Queue

3 Need Review

Conditional Progress Waiver

ABC Construction • $15,000

Auto-matched

Unconditional Final Waiver

XYZ Builders • $45,000

Flagged

⚠ Unconditional before payment confirmed

Partial Release

123 Oak Ave • $8,500

Needs Review
AI Waiver Detection

Stop Signing Away Your Rights

GCs send waiver requests buried in emails. AI automatically detects them, classifies conditional vs unconditional, matches them to jobs, and flags dangerous ones before you sign. No waiver slips through unnoticed.

  • AI detects waivers in emails automatically
  • Classifies: Conditional vs Unconditional
  • Classifies: Progress vs Final
  • Auto-matches to the right job
  • Red flags unconditional before payment
  • Alerts you before you sign something dangerous

Connected Email

Connected

john@liengaurd.com

Gmail • Syncing every 5 minutes

127

Emails Scanned

23

Jobs Found

8

Notices Sent

Last sync: 2 minutes ago

Email Integration

Set It Up Once. Jobs Flow In Forever.

One OAuth click connects your inbox. We scan for construction-related emails only—bids, contracts, and POs get detected automatically. You focus on the work—we track the paperwork.

  • Gmail & Outlook in one click
  • Scans every 5 minutes, 24/7
  • No passwords stored—ever
  • Works while you sleep
  • 127 emails scanned → 23 jobs found
Job Workflow

Know Where Every Dollar Stands

A job isn't done when you send the prelim. Track every stage—from first furnishing to final payment. See who owes you what, and when it's time to escalate.

  • Visual timeline from start to paid
  • Track draws and partial payments
  • Flag slow payers automatically
  • One-click status updates
  • Know when to send Intent to Lien
Prelim Sent✓ Complete
In ProgressCurrent
Work CompletePending
Paid in FullPending
Contract Amount$185,000
Paid to Date$92,500 (50%)
Intent to Lien

The Letter That Gets You Paid

When a GC ghosts you, send a Notice of Intent to Lien. It's a formal "pay me or I file" letter—and Intent to Lien letters often accelerate payment. No lawyer required.

  • State-compliant demand letter
  • Proper statutory language included
  • 10-day payment deadline (varies by state)
  • Sent USPS Certified with tracking
  • Often gets you paid without filing
NOTICE OF INTENT TO LIEN

Pursuant to Arizona Revised Statutes § 33-992.01

Amount Owed$47,500.00
Payment DeadlineJanuary 25, 2026
Days to Pay10 days

If payment is not received by the deadline, you may pursue further remedies—including a mechanics lien—with your attorney.

Built for Construction Professionals

Everything you need to protect your lien rights—without the paperwork headache.

Smart Review Queue

AI flags uncertain detections for your approval before sending any notice.

Deadline Alerts

Get notified 14, 7, and 3 days before every preliminary notice deadline.

Analytics Dashboard

Track contract value, notices sent, and compliance status at a glance.

Address Verification

Google Places validates property addresses automatically.

Document Storage

Store contracts, POs, and communications attached to each job.

Complete Audit Trail

Full history of every job, notice, and delivery confirmation.

Private & Secure

Your data is never shared. Only you control access to your jobs and notices.

Instant Notifications

Real-time alerts when notices are delivered or require attention.

Enterprise

Built for Teams That Move Fast

Running 100+ jobs across multiple states? Need your ERP connected? We've got you covered with API access, custom integrations, and a dedicated success manager.

99% HANDS-FREE

AI Connected to Your Team's Inboxes

For maximum protection, connect LienVault AI directly to your team members' email accounts. Every bid invite, contract, and PO is automatically detected and processed—no manual sending required.

  • Connect team Gmail or Outlook accounts
  • AI scans for construction documents 24/7
  • Jobs created before your team even reviews the email
  • OAuth secure—we never see passwords

Team Inboxes Connected

5 accounts syncing

mike@acmecontractors.com● Synced
sarah@acmecontractors.com● Synced
estimating@acmecontractors.com● Synced

47 jobs auto-detected this month

Full REST API

Create jobs, send notices, and pull reports programmatically. Connect to Procore, Sage, or your custom stack.

Real-Time Webhooks

Get instant notifications when notices are delivered, deadlines approach, or payments come in.

Unlimited States

Work in 5 states or 50—every deadline rule, every form requirement, handled automatically.

Executive Dashboards

Scheduled reports, bulk CSV exports, and custom analytics your CFO will actually use.

99.9% Uptime SLA

Priority support, dedicated account manager, and guaranteed uptime for mission-critical operations.

White-Label Ready

Your brand on every notice. Perfect for construction management firms serving multiple contractors.

Custom pricing for 100+ notices/month

Comparison

Ditch the Spreadsheets. Fire the Data Entry.

Other services charge $50+ per notice and make you type every address. We charge less and do the work for you.

Feature
LienVault
Traditional Services
Monthly Cost
From $129/mo (20 jobs) • Unlimited on Regional
$50-75 per notice
Job Detection
AI reads your emails
You type every field
Preliminary Notice
$15/notice, AI generates
$40-75 + manual entry
Intent to Lien
$25/notice, state-compliant
$75-150 or hire attorney
Waiver Detection
AI flags risky waivers
Not offered
Deadline Tracking
AI alerts before you miss
Your spreadsheet

Testimonials

They Stopped Chasing Paperwork. You Can Too.

Real contractors. Real results. Zero data entry.

$340K collected faster

"Connected my email and had my first job created in under a minute. By end of week, 12 jobs pulled from bid invites—zero data entry. We've collected $340K faster this year."

MR
Mike Rodriguez
General ContractorSacramento, CA
83% cost reduction

"We were paying $2,400/month in notice fees. Now it's $400 and we don't touch a single form. Saved 15 hours a week on paperwork alone."

JT
Jessica Thompson
HVAC SubcontractorPhoenix, AZ
0 missed deadlines

"As a supplier, tracking prelims across 50+ accounts was impossible. Now it happens automatically. Haven't missed a deadline in 8 months—zero write-offs."

CM
Carlos Martinez
Building Materials SupplierAustin, TX

Pricing

Simple, Transparent Pricing

Start with pay-per-notice or subscribe for email automation.

Starter

For solo contractors

$0/month

$25/prelim • $39/intent to lien

  • Pay only when you send
  • Upload contracts manually
  • Up to 5 active jobs
  • Deadline tracking
  • All 50 states
  • Email support
Get Started Free
Most Popular

Local

Growing contractors

$129/month

+ $15/prelim • $25/intent to lien

  • Email forwarding inbox
  • AI extracts from emails
  • Up to 20 active jobs
  • AI waiver detection
  • Deadline alerts
  • All 50 states
Start Free Trial

Regional

Full hands-off automation

$399/month

+ $15/prelim • $25/intent to lien

  • Everything in Local, plus:
  • Unlimited active jobs
  • QuickBooks integration
  • Waiver safety validation
  • OAuth email sync
  • Priority support
Start Free Trial

Enterprise

Large contractors & GCs

Custom

Volume pricing available

  • Everything in Regional
  • Volume notice discounts
  • API access
  • Custom integrations
  • Dedicated support
  • SLA guarantee

FAQ

Frequently Asked Questions

Upload a contract, forward an email, or connect your inbox directly. Our AI reads your bid invitations, contracts, purchase orders, and project communications—then automatically extracts property addresses, owner names, GC info, contract amounts, and start dates. You never type a single field.
Our AI catches 99%+ of jobs from your documents and emails. For the rare edge cases, you'll see a Review Queue where uncertain detections wait for your approval. You can also manually add any job with one click—it takes 30 seconds. The system learns from your corrections over time.
LienVault calculates deadlines the moment it detects a job. If you're already past the deadline when we find the job, we'll alert you immediately so you can explore other payment protection options. Our AI runs daily scans to catch jobs as early as possible.
High-confidence detections are processed automatically. Anything requiring verification goes to your Review Queue where you can approve, edit, or reject before any notice is sent. You always have final control.
All 50 states for preliminary notice tracking and certified mail. Our deadline calculator includes state-specific rules for residential, commercial, and public projects. Every plan covers all states—no extra fees.
QuickBooks Online is available on our Regional plan ($399/mo). It syncs invoices, tracks payments, and validates waivers against real payment data. Zapier and additional integrations are available on Enterprise. All plans can export job data as CSV.
Absolutely. All uploaded documents and emails are encrypted at rest and in transit. For direct email connections, we use OAuth 2.0—we never see or store your password. You can delete your data anytime, and we only process construction-related documents.
Yes, by emailing support@lienvault.ai. Your subscription remains active until the end of your billing period. No contracts, no cancellation fees. You can export all your job data and notice PDFs before leaving.

Start Protecting Your Payment Rights Today

No credit card required. Free 14-day trial. Cancel anytime.

Get Started Free

Trusted by contractors

Liengaurd LLC
Appntek Constructions