The 90-Day Window: How a Two-Day Margin Saved a $102,000 Mechanics Lien
What property owners and contractors must know about California's unforgiving lien deadlines
Recently I analyzed a mechanics lien case where everything came down to 88 days. The contractor filed their foreclosure action with just two days to spare before their $102,413 lien would have become worthless. This is the reality of California mechanics lien law—miss a deadline by 24 hours and you lose everything.
Here's what happened, and what it teaches us about protecting your lien rights.
The Case: A Home Addition Goes Sideways
A general contractor completed a $463,600 home addition project in Castro Valley. The owners paid five of six installments, then stopped. The unpaid balance—plus some disputed extras—totaled $102,413.24.
The contractor did everything right on the timeline. But there was a problem lurking in the numbers.
The Three Critical Deadlines (And How They Were Met)
California mechanics lien law gives you three hard deadlines. Miss any one and your lien dies. Here's how they worked in this case:
Deadline #1: Record the Lien Within 90 Days of Completion
The Timeline:
- Project completed: June 2, 2025
- Lien recorded: August 7, 2025
- Days elapsed: 67 days ✓
The contractor had 90 days from completion to record the mechanics lien. They did it in 67. Plenty of cushion.
The Rule: California law gives direct contractors 90 days after completing work to record their lien (unless the owner records a Notice of Completion—then you only get 60 days).
Lesson: Don't wait. Calendar these dates the day you finish work. I've seen contractors lose six-figure liens because they thought they had "plenty of time."
Deadline #2: File the Lawsuit Within 90 Days of Recording
The Timeline:
- Lien recorded: August 7, 2025
- Lawsuit filed: November 3, 2025
- Days elapsed: 88 days ✓
This is where it got close. The contractor filed with two days to spare.
Day-by-day calculation:
- August 7 to September 7: 31 days
- September 7 to October 7: 30 days
- October 7 to November 3: 27 days
- Total: 88 days
The Rule: California law is brutal: "If the claimant does not commence an action to enforce the lien within [90 days after recordation], the claim of lien expires and is unenforceable."
No exceptions. No extensions. No do-overs.
Lesson: Set a calendar reminder for Day 70 after you record. That gives you 20 days to prepare and file. Don't count on the 90th day—courts close, lawyers get busy, things happen.
Deadline #3: Serve Preliminary Notice (If Required)
Here's the twist: This contractor didn't need to serve a preliminary notice.
Why not?
California law says a contractor with a direct relationship with the owner only needs to serve preliminary notice on the construction lender (if there is one).
In this case, there was no construction lender, so no preliminary notice was required.
Lesson: If you're in direct contract with the owner and there's no lender, you skip this step. But if you're a subcontractor? Different story—you absolutely must serve a 20-day preliminary notice to the owner, general contractor, AND any lender.
Where This Case Gets Dangerous: The Numbers Don't Add Up
The timeline was perfect. But there's a problem with the lien amount that could destroy everything.
The Math:
- Contract price: $463,600
- Allegedly six equal installments: $77,267 each
- Lien amount claimed: $102,413.24
- Excess over one installment: $25,147
Where did the extra $25,147 come from?
This matters because California law will invalidate your entire lien if the amount is fraudulent or "willfully exaggerated."
The Contract Said All Extras Must Be In Writing
The one-page contract between the contractor and homeowners included this clause:
"Any alteration or deviation from above specifications involving extra costs will be executed only upon written orders."
The Questions That Need Answers:
- Were there written change orders for $25,147 in extras?
- Did the owners sign them?
- Or did the contractor just add work and expect to get paid?
The Law: California law says if you willfully include work not actually furnished, or exaggerate the amount, you forfeit the ENTIRE lien—not just the excess.
Translation: If the contractor can't document that extra $25K, they risk losing not just $25K, but the entire $102,413 lien.
What This Means for Contractors
DO THIS:
1. Calendar your deadlines the day work is complete
- Day 0: Completion date
- Day 60: Last day if owner records Notice of Completion
- Day 90: Last day to record lien
- Day 70 after recording: Prep lawsuit
- Day 88 after recording: File lawsuit (don't wait for 90)
2. Document every dollar in your lien
Your lien amount must include:
- Unpaid contract balance
- Authorized change orders (IN WRITING)
- Materials furnished
- Reasonable attorney fees (if contract allows)
3. Get change orders signed BEFORE you do the work
If your contract says extras must be in writing, an email from the owner saying "go ahead" might not be enough. Get it documented:
- Written change order
- Signed by owner
- Specific scope
- Specific price
4. Keep a paper trail
- Payment history
- Invoices for each installment
- Photos of work
- Emails about extras
- Signed change orders
What This Means for Property Owners
You Have Defenses (If You Act Fast)
If you're facing a mechanics lien, here's what to look for:
1. Check the timeline
- When was work completed?
- When was lien recorded? (Must be within 90 days)
- When was lawsuit filed? (Must be within 90 days of recording)
One day late = invalid lien.
2. Challenge the amount
- Does it match the contract?
- Were extras authorized in writing (per contract terms)?
- Is the contractor claiming work they didn't do?
3. Question the payment structure
In this case, the contractor claims six installments. But the contract doesn't say that. If you never agreed to that payment schedule, it's a defense.
4. Document defects
If the work wasn't completed or was defective, you may have:
- Offset for cost of repairs
- Reduction in lien amount
- Complete defense if work substantially incomplete
The Bigger Lesson: Close Only Counts in Horseshoes
That contractor who filed on Day 88? They got lucky.
What if their lawyer was on vacation?
What if the courthouse had a filing system problem?
What if they miscounted the days?
Two days later and they'd have lost a $102,000 lien. Forever. No appeals, no second chances.
In mechanics lien law, there is no such thing as "pretty close" or "we meant to file on time." The statute says 90 days, it means 90 days.
Key Takeaways
For Contractors:
- Record your lien by Day 60 (don't wait for 90)
- File your lawsuit by Day 70 after recording
- Get every change order in writing, signed, before you start
- Document every single dollar in your lien amount
- If your contract requires written authorization for extras, enforce it yourself
For Property Owners:
- Check every deadline—contractors miss them regularly
- Challenge any amount that exceeds the contract
- Demand proof of written authorization for extras
- Document any defective or incomplete work immediately
For Everyone:
- These deadlines are absolute
- California courts show zero sympathy
- Close enough is not good enough
Have questions about mechanics liens or facing a lien issue? These cases move fast and the deadlines are unforgiving. Acting early makes the difference between recovery and total loss.
Michael Arikat is a real estate litigation attorney who spent 25+ years in the field as a contractor, developer, broker, and owner's representative. Now helping A/E/C professionals navigate the business and early career growth mistakes learned the hard way.
Questions about your situation? michael@ascentaec.com | AscentAEC.com
