Case studies
Case Studies: Google Ads and Tracking Results, With the Caveats
CFS Marketing has two published client case studies: a bankruptcy law firm whose Google Ads cost per conversion fell every year from 2022 to 2025, and a trade school whose 1,462 reported conversions matched zero real leads until we rebuilt the tracking. Each one shows the starting point, what we did, the result and what the numbers can't prove.
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Contact CesarCost per conversion, lower every year from 2021 (previous agency) to 2025.
Verified leads, June to December 2025. 27% of them became students.
Reported conversions that matched a real lead in the school's form database.
Client and employer names withheld. Results from one account don't predict another.
CFS Marketing is a senior-led SEO, AI search and Google Ads consultancy founded by Cesar Soto in 2022, serving growth-focused businesses from Irving, Texas. Clients are anonymized, and results from Cesar's in-house employment are listed separately and labeled as employment, not client work.
01
How Did a Bankruptcy Law Firm's Google Ads Cost per Conversion Fall Four Years Running?
A bankruptcy law firm's Google Ads cost per conversion fell every year for four years after CFS Marketing took over the account from another agency in 2022: from $61.44 in 2021 to $51.12 in 2025, 16.8% below the 2021 baseline.
Baseline
The firm came to us from a previous agency. In 2021, the last full year under that agency, the account converted 13.43% of clicks at a cost per conversion of $61.44. That year is the baseline for everything below.
What we did
- Took over the account in 2022 and managed it through 2025.
- Read the search terms report and built negative keyword lists to block searches from people who were never going to hire a bankruptcy lawyer. That work removed 40% of the low-intent traffic the account had been paying for.
- Reported in cost per conversion every year, and in 2024 checked the account's conversions against the firm's CRM.
Result
| Year | Managed by | Conversion rate | Cost per conversion |
|---|---|---|---|
| 2021 | Previous agency | 13.43% | $61.44 |
| 2022 | CFS Marketing (takeover) | 22.80% | $60.06 |
| 2023 | CFS Marketing | 20.44% | $56.16 |
| 2024 | CFS Marketing | 17.73% | $52.93 |
| 2025 | CFS Marketing | 17.78% | $51.12 |
- Cost per conversion fell every year, closing 2025 16.8% below the 2021 baseline.
- 1,511 conversions from 2022 to 2025.
- 2024 had 475 conversions, verified against the firm's CRM.
- Conversion rate rose from 13.43% to 22.80% in the takeover year, then settled around 18%.
Honest caveat
Confidence: B (probable). The trend is consistent across four years and starts from a clean baseline year under another agency, but we can't isolate our work from everything else that moved in that window.
- The figures are Google Ads yearly figures. Only 2024's conversion count was checked against the firm's CRM. The other years are as Google Ads reported them.
- Conversion rate peaked in 2022 and came down. After the takeover year, the improvement is in cost per conversion, not in a rising conversion rate.
- Budget, auction prices and demand for bankruptcy help changed from year to year. We can't separate those effects from our management.
- This is one account in one market. It isn't a promise of the same outcome for your firm.
More detail on how we run legal accounts is on our law firm PPC and bankruptcy attorney marketing pages.
02
How Did a Trade School Go From 1,462 Phantom Conversions to 88 Verified Leads?
A trade school's Google Ads account reported 1,462 conversions, and when CFS Marketing cross-referenced them against the school's form database, zero matched a real lead. After we rebuilt the tracking, the account produced 88 verified leads from June to December 2025, and 27% of them became students.
Baseline
The account looked productive on paper: 1,462 conversions. None of them matched a real lead in the school's form database. Google's bidding had been learning from conversions that didn't exist, so every optimization built on that data was aimed at the wrong target.
What we did
- Audited the conversion tracking and compared every reported conversion with the school's form records.
- Rebuilt the tracking so a conversion meant a real inquiry.
- Ran Google Ads against the corrected data and checked each lead against the school's database.
Result
- 88 verified leads from June to December 2025, every one matched to the school's records.
- 27% of those leads became students.
Honest caveat
Confidence: B (probable) for the tracking finding; C (directional) for the lead and enrollment figures. The 1,462-to-zero mismatch is a direct database comparison. The lead figures cover seven months and 88 leads, which is a small sample.
- There is no clean "before" lead count to compare against, because the old tracking couldn't tell us how many real leads the account produced.
- Enrollment depends on the school's admissions process, not only on marketing.
- One school, one market, one season. Your numbers will differ.
The lesson applies in every industry: check what you're counting before you optimize it. Our GA4 and conversion tracking page covers the audit.
03
What Has Cesar Done In-House?
Before and alongside CFS Marketing, Cesar Soto held in-house marketing roles. These results come from employment, not client engagements, and we don't name the employers.
Hospital network, SEO Specialist (2019 to 2020)
- Optimized 2,000+ Google Business Profile locations.
- Set up 200 new listings.
- Managed 500 locations through Yext.
B2B facility services company, Director of Marketing (2026)
- Sole owner of SEO, AEO/GEO, content, paid search and web development.
- Eliminated 3,000+ broken redirects and 200+ duplicate pages in the first month, taking Ahrefs site health from 75% to 99%.
- Restructured the site around 11 service pages, updating 11,000+ internal links with zero post-crawl errors.
- Mobile PageSpeed 96+.
He also led marketing in-house at a commercial real estate brokerage (Marketing Director, 2020 to 2026) and worked at a personal injury law firm in 2018. We list those as experience only and publish no results from them. See how this experience applies on our healthcare and B2B SaaS and tech pages, or read more on the about page.
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04
Why Are Client Names Withheld?
Client names are withheld because client work stays confidential by default, and we publish a name only with written permission. Until then, each client is described by type, such as "a bankruptcy law firm" or "a trade school."
Anonymizing means more than dropping the name. We also leave out ad spend, revenue, the city and any keyword list specific enough to identify the business. Employers are never named on this site.
05
How Are These Results Measured?
Every figure on this page comes from a client's own account or records, not from a sample, an estimate or another agency's work.
| Figure | Source |
|---|---|
| Law firm conversion rate and cost per conversion, 2021 to 2025 | The firm's Google Ads account, full-year figures |
| 1,511 conversions, 2022 to 2025 | The firm's Google Ads account |
| 475 conversions in 2024 | Verified against the firm's CRM |
| 40% of low-intent traffic removed | Negative keyword management in the firm's Google Ads account |
| 1,462 reported conversions, zero matched | Google Ads conversions cross-referenced against the school's form database |
| 88 verified leads, 27% enrolled | Leads matched to the school's database, June to December 2025; enrollment from the school's records |
How we rate confidence:
- A (attributable): clean baseline, isolated change, result held over time with no competing explanation.
- B (probable): clean baseline and a clear result, with at least one factor we couldn't rule out.
- C (directional): the result is real, but the sample or window is too small to settle cause.
Neither case study is rated A. We'd rather tell you that than round up.
06
What Should You Take From Two Case Studies?
Two case studies show what our method has produced in two specific accounts. They don't show a typical result, because two results aren't a distribution. What they do show is how we work: we start from a dated baseline, check reported numbers against real records, and report what we can't prove alongside what we can.
If you want to see how the same approach would apply to your account, see our Google Ads consultant page or all industries.
Case Studies FAQ
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Get my custom planAre these results typical?
CFS Marketing can't call them typical, because two case studies aren't enough to show a range of outcomes. They are real results from two specific accounts, with the caveats stated. Your results will depend on your market, budget, offer and intake.
Do you have a case study in my industry?
CFS Marketing's published client case studies are in legal and education. Healthcare and B2B services are backed by Cesar's in-house roles, and other industries are method only for now. Each industry page says which applies.
Why report cost per conversion instead of revenue?
Cost per conversion is the figure we can source directly from the ad account and, where the client allows, verify against a CRM. We don't publish client revenue, and we don't estimate it.
Are in-house results counted as client results?
No. Results from Cesar's employment at a hospital network and a B2B facility services company are labeled as in-house work and kept separate from CFS Marketing client case studies.
Find Out What Your Own Numbers Say
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