Lien waivers are simple documents that cause expensive problems when they’re handled loosely. Here are the five mistakes that bite general contractors most often.
1. Sending the wrong waiver type
Conditional and unconditional are not interchangeable. An unconditional waiver takes effect on signing even if payment hasn’t cleared — so sending one too early can release rights to money no one has received. Use conditional until payment clears. (Full breakdown.)
2. Missing a waiver entirely
The waiver matrix explodes around five active jobs — conditional and unconditional, progress and final, across every sub and supplier. Miss one and you’re exposed to a lien on work you already paid for. A spreadsheet doesn’t remind you; a system should.
3. Forgetting to carve out retainage
Write a progress waiver for the full invoice when you were paid invoice-minus-retainage, and you’ve waived rights to the withheld amount. Always exclude retainage from the covered amount. (How retainage works.)
4. Relying on advance “no-lien” waivers
Several states (e.g., Illinois, North Carolina, Tennessee, Virginia, Maryland) bar waiving lien rights before work is furnished or inside the subcontract — those clauses are void. Don’t assume an up-front waiver in your contract protects you. Check your state’s rules.
5. Letting tracking go stale
Even with the right forms, lien rights are time-sensitive — deadlines run from the last day of furnishing. If you can’t quickly see which waivers are outstanding and which payments cleared, you’re flying blind near those deadlines.
The throughline
Every one of these is a process failure, not a legal one. ClearLien closes the gaps: it drafts the correct waiver the moment you pay a bill in QuickBooks, carves out retainage automatically, and shows you exactly what’s outstanding — so none of the five slip through.