Two thresholds. First, you need enough reviews to clear the credibility bar — roughly 10 to 15 — so that a prospect scanning your Google Business Profile doesn’t subtract trust because the count looks thin. Second, you need to be in striking distance of your top local competitor on velocity, not total volume. For most law firms in most markets, that lands at about 50 recent reviews plus a steady drip going forward. If a competitor down the street has 400, you don’t need 400. You need recent, real, and consistent.
The credibility threshold (the first 10 to 15)
Until you hit roughly a dozen reviews, your firm reads as untested to a prospect. Three reviews can be friends. Five could be inside jobs. Once you cross 10 to 15, there’s enough volume that the average rating starts to feel statistically meaningful. The reader stops worrying that you cherry-picked the only people who liked you.
This is also the threshold where Google itself seems to take the profile more seriously. The local pack favors profiles with enough review signal that the algorithm has something to weigh — average rating, recency, response activity, distribution of ratings. Below 10 reviews you’re often in a different competitive bucket than firms with 50 or 100.
If your firm is sitting at 4 or 6 reviews, the first 90 days of any real reputation effort is just clearing that bar. You’re not chasing a competitor yet. You’re getting yourself into the conversation.
The velocity question, which matters more than total volume
Once you’re past the credibility threshold, the next question is velocity — how many reviews you’re adding per month — measured against your top local competitor.
Here’s the math that actually matters. Say your top competitor for “personal injury lawyer [city]” has 280 reviews. Your firm has 30. The volume gap is 250. If they’re adding 8 reviews a month and you’re adding 2, the gap will be 322 in twelve months. You’re losing ground, not gaining. If they’re adding 8 and you’re adding 12, you’re closing — even though they’re still well ahead on total count.
Google’s local algorithm cares about recency. A 5-star review from last week is worth more than a 5-star review from three years ago. This means the firm with 60 reviews from the past 24 months can outrank the firm with 400 reviews where most are from 2018 to 2021. I’ve seen this play out — a Phoenix PI firm with 90 mostly-recent reviews ranking above a competitor with 350 stale ones. The recency signal does real work.
So the right velocity number isn’t “more than zero.” It’s “more than your top competitor’s rolling 90-day count.” If they’re getting 6 reviews a month, you need 6 to hold ground and 9 to close the gap.
The 50-review rough target for established firms
For an established firm — a few years in, a steady caseload, a couple of practice areas — 50 reviews is a fair target to hold most of the time. Past 50, the marginal benefit of each additional review starts to fall off. A prospect deciding between a firm with 50 and a firm with 200 will pick on the basis of recent reviews, response quality, and the firm’s actual story — not on the raw count.
That said, 50 is not a ceiling. If you can comfortably generate 4 reviews a month from your actual closed-matter pipeline, keep generating them. You’re not trying to reach 500. You’re trying to stay in the recency band — keep the most recent 50 reviews looking strong, well-written, and replied to.
You don’t need 500 reviews. You need 50 recent ones and a steady flow. Most agencies pitch you on total volume because total volume is easier to invoice for than disciplined reputation work.
When the math actually requires more than 50
There are markets where the floor genuinely is higher. Phoenix-metro PI is one of them. The top three firms in the local pack for “personal injury lawyer Phoenix” have hundreds of reviews because the competition has been working at this for years and the practice-area economics support that kind of operational discipline.
If you’re in a market like that and you want to be in the local pack, the credibility bar moves up. You’re not competing against 12-review firms anymore. You’re competing against firms with 200+ reviews and active velocity. Your target probably shifts to 100+ with a recency window where the most recent 30 reviews are in the past 6 to 9 months.
Most practice areas in most cities are not that competitive. Family law, estate planning, criminal defense, business law — in most secondary markets, 30 to 60 reviews with steady velocity will compete fine.
The realistic capture rate
One thing nobody tells you up front: a well-run review-request process for a law firm typically converts 20% to 35% of closed matters into a posted Google review. The reasons it doesn’t convert at 80% are baked into the practice — clients are stressed, the matter ends and they want to move on, some don’t want to be publicly associated with the legal issue, some forget.
If you close 20 matters a month, you can realistically generate 4 to 7 new Google reviews monthly on a disciplined process. That’s the cadence to plan around. Don’t promise yourself 20 reviews a month from 20 matters — you’ll set expectations that produce desperate-feeling solicitation tactics, which are exactly the tactics that get reviews filtered out.
The mechanics of asking — when in the matter lifecycle, by what channel, with what language — are covered in how do I get clients to leave reviews. The legality of asking past clients is covered in can past clients leave Google reviews.
What to do this quarter
Look at the top-ranking firm for your top practice area in your city. Note their review count and the date of their most recent five reviews. That’s your competitive benchmark — not the gross count, but the rolling 30-day pace.
Then look at your own pipeline. How many matters did you close last month? At a 25% capture rate, what’s a realistic monthly review pace? Build the asking process around that number. Aim to match or beat the competitor’s rolling pace and stop worrying about their total.
For more on how reviews actually affect local pack rankings, see local pack ranking factors for attorneys and the parent guide on reviews, reputation and trust.