Diamond Bar Car Accident Lawyer

Helping Car Accident Victims Recover

After a Crash,

Call a Local Fighter

A wreck on the 57, 60, 71, or I-10 can flip your life in an instant. As your Diamond Bar car accident lawyer, The Guerrero Firm moves fast to secure evidence, manage insurance calls, and position your claim for maximum recovery. From high-speed collisions near the 57/60 interchange to rear-end crashes on Grand Ave, we know the patterns, the adjusters, and the pressure points that move cases.

What To Do After a Car Accident

Simple Steps That Protect Your Claim

  1. Call 911 and get medical care. 
  2. Move to safety and document the scene.
  3. Exchange information and report to police if there are injuries. 
  4. Photograph vehicles, road conditions, and visible injuries. 
  5. Avoid recorded statements and contact Guerrero Firm to handle insurers.


These actions help build a clear record and protect your right to compensation.

Common Causes and Injuries

From Distracted Driving to Highway Pileups

We routinely see crashes caused by texting, speeding, DUI, unsafe lane changes, and fatigue—especially amid heavy commuter and freight traffic. Injuries range from whiplash and fractures to herniated discs and TBI. If your collision involved a commercial vehicle, you may be facing the added complexity of truck accidents with multiple liable parties and federal safety rules.

Determining Fault & Your Rights

How Liability Works in California

California’s comparative negligence law lets you recover even if you’re partially at fault—your compensation is simply reduced by your percentage of responsibility. Police reports, witness statements, scene photos, and medical records help establish liability and damages. In the most severe cases, families may have a wrongful death claim tied to a fatal crash.

How The Guerrero Firm Can Help

Strategy, Speed, and Relentless Follow-Through

We investigate every angle: traffic cams, event data recorders, expert reconstruction, and medical documentation that proves the full impact of your injuries. We handle adjusters who minimize losses and push for the highest settlement—or take your case to trial if that’s what it requires. When auto defects or failed components are suspected, we explore product liability avenues alongside your injury claim.

Why Hire a Car Accident Attorney

The Difference an Advocate Makes

Insurers count on delays, confusion, and low offers. We cut through the noise with a case plan tailored to your injuries and goals, a realistic valuation, and the litigation muscle to back it up. Clients choose The Guerrero Firm for attentive service, courtroom results, and local knowledge that matters.

Questions Drivers Ask Us

Straight Answers When You Need Them Most

  • How long do I have to file?

    Generally two years from the accident date (shorter if a government vehicle is involved).

  • What if the other driver has no insurance?

    We pursue uninsured/underinsured motorist coverage and all viable defendants.

  • How much does a lawyer cost?

    Our contingency fee means no upfront payment—we only get paid if we win.

Get a Free Case Review

Call, Click, or Schedule a Visit

If you were hit anywhere in the San Gabriel Valley or Inland Empire, reach out for timely guidance. The sooner you call, the sooner we can preserve evidence and start building leverage with the insurer.