Should a criminal defense firm let Google set its bids automatically, or set them by hand? The honest answer depends less on the bidding setting and more on what Google is told to optimize for. Automated bidding pointed at the wrong goal will efficiently buy you the wrong calls.
Manual vs. automated bidding in plain terms
| Strategy | What you tell Google | Good for | Risk in criminal defense |
|---|---|---|---|
| Manual CPC | The most you’ll pay per click | New accounts, tight control, low volume | Slow to react to late-night and weekend demand |
| Maximize Clicks | Get as many clicks as possible | Almost never | Buys cheap, broad, low-intent clicks |
| Maximize Conversions | Get as many conversions as possible | Accounts with clean call tracking | Chases cheap “conversions” like short calls |
| Target CPA | Get conversions at a set cost | Steady volume of qualified calls | Treats a misdemeanor and a felony the same |
| Maximize Conversion Value / Target ROAS | Get the most case value, or a set return | Accounts sending signed cases and fees to Google | Needs enough signed cases to learn |
The real question: what is Google optimizing for?
Automated bidding is only as good as the conversions it learns from. If every phone call counts, Google learns to find phone calls, including hang-ups, wrong numbers and people whose case is in another state. If it learns from signed cases and their fees, it learns to find clients.
In a Birmingham defense account, the DUI campaign showed conversions every month and had never produced a signed case. Any automated strategy aimed at those conversions would have spent more on it, not less.
Which strategy to use, by stage
Stage 1: Tracking isn’t reliable yet
Use manual CPC or Maximize Clicks with strict bid limits, on tight, charge-specific keywords in phrase and exact match. Fix tracking first: count only real calls (over about 60 seconds) and real form submissions.
Stage 2: Qualified calls are tracked
Move to Maximize Conversions or Target CPA, using qualified calls as the main conversion. Keep reading the search terms weekly; automated bidding still wanders.
Stage 3: Signed cases and fees flow back to Google
Now value-based bidding makes sense: Maximize Conversion Value, then Target ROAS. Google starts favoring the searches and people that look like your higher-fee clients. In my experience this needs roughly 15 to 30 signed cases a month. How to send signed cases to Google Ads.
Why case value matters so much in defense
In the Birmingham account, the best month brought in $89,500, and 53% of it came from three matters worth $10,000 or more. Months with at least one $10,000 case averaged a 5.3× return; the rest averaged 3.0×. A bidding strategy that treats every case as equal can’t chase those months. One that knows case values can.
Google Ads bidding strategies explained for law firms
| Strategy | What Google does | When a defense firm should use it |
|---|---|---|
| Manual CPC | You set the maximum price per click for each keyword. | New or tiny accounts, or when tracking is broken and Google has nothing reliable to learn from. |
| Maximize clicks | Gets as many clicks as possible for the budget. | Rarely. It buys cheap clicks, which in defense are often the wrong callers. |
| Maximize conversions | Gets as many conversions as possible for the budget. | Once calls and forms are tracked properly, to gather data. |
| Target CPA | Aims for an average cost per conversion you set. | When you have steady conversion volume and know what a lead is worth. |
| Maximize conversion value / Target ROAS | Bids for the conversions worth the most money. | When you send signed-case fees back to Google. In my experience this needs roughly 15–30 signed cases a month. |
Bid by charge, not by account
A DUI flat fee, a drug possession case and a federal felony are not worth the same, and the clicks don’t cost the same either: Keyword Planner shows top-of-page bids up to about $132 for “dui lawyer” and about $85 for “federal criminal defense attorney.” Putting them in one campaign with one target forces Google to treat them alike. Separate campaigns by charge let you give each its own budget and target, and stop a cheap, high-volume charge from eating the budget meant for serious cases.
How to switch bidding strategies without losing a month
- Fix conversion tracking first. Only real calls (over about 60 seconds), forms and booked consultations should be Primary conversions.
- Make the change on one campaign at a time, not the whole account.
- Expect a learning period of one to two weeks. Don’t judge or change it again during that time.
- Set a realistic target, close to what the campaign already achieves, then tighten gradually.
- Judge the result on signed cases over 60–90 days, not on the week-one conversion count.
Feeding signed-case values back to Google
Value-based bidding only works if Google knows which clicks became clients and what they paid. That means recording the Google click ID with each lead and uploading signed fees from your case management system as offline conversions. Here’s how to set that up with CallRail and Clio.
Mistakes to avoid
- Switching strategies during a Google platform change. A Smart Bidding change in August 2026 confounded a bidding test in the Birmingham account, so the result wasn’t used.
- Judging a new strategy after two weeks. Cases sign one to three months after the first call.
- Letting Target CPA cut your best campaign because felony cases cost more per lead.
- Turning on broad match with automated bidding before signed-case tracking exists.
What is the best bidding strategy for law firm Google Ads?
It depends on your data. Start with manual CPC or Maximize conversions while tracking is being proven, move to Target CPA once you have steady lead volume, and use value-based bidding only when you send signed-case fees back to Google.
Should lawyers use manual or automated bidding?
Automated bidding works well when Google is optimizing for real leads or, better, signed cases. If conversions are counting page views or short calls, manual bidding is safer until tracking is fixed.
How many conversions does smart bidding need for a law firm?
Google’s automated bidding learns faster with more conversions. For value-based bidding on signed cases, in my experience a defense firm needs roughly 15 to 30 signed cases a month.
Why did my cost per lead go up after switching to smart bidding?
Usually because the learning period hasn’t finished, the target is too aggressive, or the conversions Google is optimizing for aren’t real leads. Give it two weeks, set a realistic target and check which conversions are Primary.
Should criminal defense firms use Target ROAS?
Only once signed-case fees are uploaded from your case management system and you have enough volume. Without real fee data, Target ROAS has nothing meaningful to optimize.
Get a straight answer on your account
Not sure your bidding is aimed at the right goal? Book a free 30-minute account review. I’ll look at your search terms, your call recordings and what you signed last quarter, and tell you where the money is leaking, whether you hire me or not. I work with one criminal defense firm per city and 12 firms at most.
Or call Henry directly at 612-203-3591. See pricing or the full Amari Law Firm results.
Henry Bell runs Bellringer Marketing, a Google Ads practice that works only with criminal defense firms. He managed paid search and Local Services Ads for Amari Law Firm in Birmingham, Alabama, from September 2025 to August 2026, reporting results in signed cases from the firm’s case management system.
