Every property.
Every bill. Protected.
Contractor invoice fraud, utility billing errors, and HOA fee violations cost property managers thousands every year. Warnvo scans every bill so you don't have to.
What you're dealing with every day
The billing fraud and overcharge patterns that cost your clients money — and your practice time.
Contractor invoice fraud
Labor hours inflated, materials billed at retail instead of wholesale, and phantom charges for work never performed.
Utility billing errors
Meter misreads, rate class errors, and demand charge miscalculations are common — and rarely caught without a detailed audit.
HOA fee violations
Undisclosed transfer fees, illegal special assessments, and late fee calculation errors that violate CC&Rs and state law.
Maintenance markup abuse
Property management companies sometimes mark up vendor invoices by 15–30% without disclosure in the management agreement.
Vendor kickbacks
Preferred vendor arrangements that benefit the property manager financially — a potential breach of fiduciary duty.
Lease compliance billing
Charges that violate specific lease provisions — often discovered only when a tenant disputes or a property is sold.
Built for your workflow
Tools designed specifically for professionals who deal with billing disputes and consumer protection every day.
Invoice line-item analysis
ShieldEngine™ compares contractor invoices against market rate databases for labor and materials in your zip code.
Vendor dispute letters
Generate formal dispute letters citing contractor licensing requirements, state consumer protection laws, and contract terms.
Contractor specialist
Complex cases are routed to the contractor billing specialist.
Frequently Asked Questions
Start protecting your clients today
Free for individual consumers. Pro Business starts at $99/month.
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