TL;DR: According to Creekside Marketing, a personal injury law firm in Arizona signed 50+ qualified cases in 4 months and opened a 6th office using Google Ads, Meta Ads, and Local Service Ads. A separate bankruptcy law firm cut cost per lead 42% from $86.09 to $50.29 while growing conversions from 117 to 229.

Results at a Glance

Signed PI Cases: 50+ in 4 months

Lowest CPA per Case: $621

New Office Opened: Yes (6th location)

Bankruptcy Firm CPA: $50.29 (down 42% from $86.09)

Bankruptcy Conversions: 229 (up 96% from 117)

Platforms: Google Ads, Meta Ads, Local Service Ads

Timeframe: 4 to 6 months

Source: Creekside Marketing

Personal Injury Law Firm Google Ads Case Study: 50+ Signed Cases in 4 Months

This personal injury law firm Google Ads case study documents what happened when an Arizona PI firm stopped optimizing for lead volume and started optimizing for signed cases. According to Creekside Marketing, the multi-channel paid advertising campaign generated 50+ signed cases in four months, hit a cost-per-case as low as $621, and delivered enough consistent revenue to fund a sixth office expansion.

This post covers two Creekside Marketing legal campaigns: a personal injury firm in Arizona and a bankruptcy firm in Orange County, California. Both used Google Ads. Both had different structural problems. Both produced results worth showing.

Why Personal Injury Google Ads Are the Hardest PPC to Get Right

According to Creekside Marketing, legal is the highest-cost advertising vertical in Google Ads, with cost-per-click ranging from $20 to $150 depending on keyword and geography. Personal injury keywords hit the top of that range. A law firm expecting dental or home service CPC benchmarks will find legal budgets disorienting at first, but the unit economics change the calculation entirely.

The problem most PI firms run into is not ad spend and it is not high CPCs. It is lead quality. High-volume, low-quality leads look good in a reporting dashboard and destroy intake efficiency in practice. Intake staff spend hours on callers who have no viable case, who called the wrong firm type, or who have already hired a competitor. The campaign optimization algorithm sees all of those contacts as conversions and keeps sending more of them.

Many law firm owners face this exact pattern: strong lead volume on paper, weak signed-case numbers in reality, and a Google Ads account that is technically performing while practically underdelivering. Fixing it requires changing what the algorithm is told to optimize for, not simply increasing the budget.

Inside a Personal Injury Law Firm Google Ads Case Study: The Big Chad Law Campaign

According to Creekside Marketing, when this campaign launched in early 2025, the Arizona PI firm was generating leads but losing too many in the intake process. A growing percentage of contacts were failing to qualify as actual personal injury cases, and intake staff were flagging them as spam at an increasing rate. The firm had a lead quality problem that looked like a lead volume problem from the outside.

The strategy Creekside built had three components:

Multi-channel surround sound. Meta Ads ran brand awareness campaigns across Arizona, building familiarity before someone had an active legal need. When a prospect had an accident and searched for a personal injury attorney, the firm was already recognizable. Google Search Ads captured that high-intent demand in the moment of need. Local Service Ads secured guaranteed top-of-page placement with a Google-verified badge and pay-per-lead pricing. Each channel served a defined role in the funnel rather than duplicating the same reach.

Conversion tracking refined to calls lasting over 3 minutes. Creekside narrowed the conversion event from any phone call to phone calls lasting more than 3 minutes. Short calls rarely convert to qualified PI intakes. Calls lasting 3 minutes or more correlate strongly with a real intake conversation. Feeding this tighter signal into Google’s Smart Bidding algorithm retrained the system to find users more likely to have a substantive case, not just any user likely to dial.

Budget calibrated to case value. With PI case values frequently in the five and six-figure range, spending $800 to $1,100 per signed case is defensible math. Creekside built budget expectations around case economics rather than targeting a low-CPC benchmark that does not exist in this vertical.

Monthly Results: Big Chad Law (April to September 2025)

April 2025: 15 cases signed | $12,881 ad spend | $858 per case

May 2025: 18 cases signed | $18,622 ad spend | $1,034 per case

June 2025: 17 cases signed | $14,031 ad spend | $825 per case

July 2025: 19 cases signed | $22,220 ad spend | $1,169 per case

August 2025: 21 cases signed | $21,774 ad spend | $1,036 per case

September 2025: 12 cases signed | $7,455 ad spend | $621 per case

Platform: Google Ads + Meta Ads + Local Service Ads

Source: Creekside Marketing

Between April and September 2025, the campaign generated 102 total signed cases across six months of tracking. Cost-per-case improved to its lowest point of $621 in September as the algorithm fully optimized to the quality-filtered conversion signal. The consistent case volume was the direct driver behind the firm opening a sixth Arizona office.

Read the full breakdown: Big Chad Law Case Study

How a Bankruptcy Law Firm Cut Cost Per Lead 42% Without Adding Budget

According to Creekside Marketing, the Winterbotham Parham Teeple campaign illustrates a different but equally common legal advertising problem: a structurally flat account that generates acceptable results but never improves. The firm was spending approximately $10,000 per month and generating 117 conversions at $86.09 each. Not catastrophic. Not growing. Not efficient enough to scale.

The structural issue was a single broad campaign covering all bankruptcy keywords across a wide geography. Budget spread evenly across all targets made it impossible to identify which practice area or which market actually performed. Chapter 7 leads, Chapter 13 leads, and general bankruptcy inquiries were blended into a single number. Orange County and Los Angeles were treated as identical markets despite meaningfully different competitive dynamics and conversion rates.

Creekside restructured the account into four distinct segments: a general bankruptcy campaign, a Chapter 7 campaign, a Chapter 13 campaign, and a dedicated Orange County geo campaign. The segmentation created clean performance data for each segment. Budget followed the data rather than being spread evenly. Orange County emerged as the standout performer with higher conversion rates and stronger intake quality based on client feedback.

The outcome on just $1,440 more in total monthly ad spend: conversions grew from 117 to 229 (a 96% increase), cost per conversion dropped from $86.09 to $50.29 (a 42% reduction), and click volume grew 21% as ad relevance improved across the restructured campaigns. With average bankruptcy case fees ranging from $1,500 to $4,000, a $50.29 cost per lead represents a 30x to 80x return on every closed case.

Read the full breakdown: Winterbotham Parham Teeple Case Study

What These Campaigns Tell Every Law Firm Owner About PI Lawyer Google Ads

According to Creekside Marketing, both legal campaigns succeeded for the same core reason applied in different ways: they stopped optimizing for intermediate metrics and started optimizing for outcomes that connect directly to revenue. The PI firm tracked signed cases instead of raw calls. The bankruptcy firm tracked conversions by segment and geography instead of blended account averages. Both decisions produced cleaner signal, better algorithm performance, and measurable business results.

Three principles from these campaigns that apply to any legal practice running Google Ads:

Optimize for your real business metric. Cost per lead is a dashboard metric. Cost per signed case, cost per qualified intake call, or cost per retained client is the metric that connects advertising spend to revenue. Both campaigns improved meaningfully once the conversion definition moved closer to the real business outcome rather than counting any form fill or phone ring.

Geo-segmentation is underused in legal advertising. The bankruptcy firm’s biggest single improvement came from treating Orange County as its own dedicated campaign instead of a subset of a broader Southern California target. Geographic performance variation in legal is significant enough that running one campaign across a wide area consistently blends high-performing and low-performing markets into an average that hides both opportunity and waste.

Multi-channel presence matters when decisions take time. Personal injury cases are not impulse decisions. A prospect might encounter the firm through a Meta awareness ad, see a Google Search ad after a relevant life event, and then call after spotting an LSA at the top of results. Running Meta, Search, and LSAs in a layered structure ensures the firm is available at every touchpoint across a longer decision cycle, rather than betting on a single channel to carry the full prospect journey.

For current benchmark data on legal advertising costs, see How Much Do Google Ads Cost for Lawyers. For an overview of our Google Ads management approach, visit our Google Ads services page.

Frequently Asked Questions: Personal Injury Law Firm Google Ads Results

What is a realistic cost per signed case for PI Google Ads?

According to Creekside Marketing, cost-per-signed-case for personal injury Google Ads varies by market competition and intake conversion rate, but the Big Chad Law campaign achieved between $621 and $1,169 per signed case across six months of active running. Markets with dense attorney competition or strong established incumbents typically run toward the top of that range. The critical variable is tracking quality: firms tracking all calls rather than quality-filtered calls often see inflated conversion counts that mask a much higher true cost per signed case.

How long before a PI law firm sees consistent case volume from Google Ads?

According to Creekside Marketing, most personal injury Google Ads campaigns generate qualified intake activity within the first 30 days of launch. Consistent, predictable signed-case volume typically takes 60 to 90 days, which is the time needed for Smart Bidding to learn from quality conversion signals and begin targeting the right audience reliably. The Big Chad Law campaign generated 15 signed cases in its first tracked month and grew from there, reaching 21 cases in month five.

Should personal injury firms use Local Service Ads or Search Ads?

According to Creekside Marketing, the best-performing PI campaigns run both in a layered structure rather than choosing one. Local Service Ads provide guaranteed top-of-page placement, a Google-verified badge that increases trust, and pay-per-lead pricing that protects against wasted clicks. Google Search Ads provide control over messaging, keyword intent, and audience targeting that LSAs do not offer. The Big Chad Law campaign ran LSAs alongside Google Search and Meta Ads simultaneously, with each channel covering a different stage of the prospect journey.

What conversion tracking setup works best for law firm Google Ads?

According to Creekside Marketing, the highest-performing legal campaigns track a quality-filtered phone call as the primary conversion event rather than tracking all calls or all form fills equally. For the Big Chad Law campaign, the key filtering threshold was calls lasting more than 3 minutes, which correlated with qualified PI intake conversations based on intake staff feedback. Feeding quality-filtered conversions into Smart Bidding produces meaningfully better lead quality than optimizing for raw volume, even though it initially shows lower conversion counts in the dashboard.

How much should a law firm budget for Google Ads each month?

According to Creekside Marketing, most competitive legal markets require a minimum of $5,000 to $10,000 per month to generate consistent qualified volume, with personal injury markets at the upper end due to high CPCs. The Big Chad Law campaign ran between $7,455 and $22,220 per month across its tracked period. The Winterbotham Parham Teeple bankruptcy campaign achieved 229 conversions on approximately $11,500 per month. The right budget is tied to case value: a practice where a signed case generates $25,000 in expected revenue can justify $15,000 in monthly ad spend if the case acquisition rate supports it.

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Full case studies: Big Chad Law | Winterbotham Parham Teeple

About the Author

Peterson Rainey is the founder of Creekside Marketing, a performance-driven digital advertising agency managing over $20M in ad spend across Google Ads and Meta Ads. He specializes in helping law firm owners grow through paid advertising on Google Ads and Meta Ads.