> **The idea, in one sentence.** In the **liberal professions** (lawyer, accountant, healthcare professionals, notary, architect), you don't "run ads" — you build a **reputation**. Commenting on LinkedIn is the ideal tool for that: by adding nuance and clarity under the right posts, you become **visible, useful and credible** to a local client base and your peers, **without soliciting**. This guide covers the method and the **ethical framework** to respect, backed by our first-party LinkHub data. Third-party figures are cited, dated estimates. No invented numbers.

## Key takeaways

- **You sell trust, not a product.** In professional services, the client picks a person. Commenting shows your expertise **in action** — far more convincing than a brochure.
- **Borrowed visibility, no audience to build.** A comment is seen **~179 times on average**, whether you have 50 or 5,000 followers: its reach depends on the **host's** audience, not yours.
- **The host is everything.** Commenting on a top 10% in your niche earns **~3.4x** more impressions than the median (4,861 creators analyzed). *(see [the ICP of a comment](/en/blog/icp-commentaire-linkedin))*
- **Target local + peers.** Your comment ICP = local/regional creators and the bodies/media of your profession whose audience holds your future clients **and** your peers.
- **Ethics first.** Several professions have strict rules (no solicitation, no promise of results, confidentiality, collegiality). Commenting to **inform** is allowed; commenting to **solicit** is not. *(detailed in section 5)*
- **It's fast.** With LinkHub, a comment takes **~29s measured** (median, n = 44,523) — a few minutes a day is enough for a steady, controlled presence.

## 1. Why commenting is the ideal tool for the liberal professional

In the liberal professions, your main asset is neither a product nor a price: it's your **reputation**. A client doesn't choose "a firm," they choose **someone** they trust on a sensitive matter — a dispute, a tax question, their health, a deed, a project. And trust can't be declared in a brochure: it has to be **demonstrated**.

That's exactly what a comment allows. When you reply accurately under a peer's post or a professional outlet's post, you show your expertise **in situ**: how you reason, qualify, and explain clearly. That's infinitely more credible than a self-proclaimed slogan.

And unlike a post, a comment **requires no pre-existing audience**. Many professionals have a modest LinkedIn network: posting would leave them invisible. A comment **borrows the audience of the creator you comment on** and is seen **~179 times on average** regardless of your follower count *(the mechanism is detailed in [comments vs likes](/en/blog/commentaires-vs-likes-linkedin))*. For a professional who has neither the time nor the wish to become a "content creator," it's the most accessible and dignified entry point. If you're truly starting from zero, the [beginner guide without an audience](/en/blog/commenter-linkedin-debutant-sans-audience) lays the groundwork.

## 2. Defining your comment ICP: local clients + peers

The question isn't "who do I want to sell to," but **"under which creators should I comment to land in front of those people."** That's the key concept of [the ICP of a comment](/en/blog/icp-commentaire-linkedin): you don't directly choose who reads you, you choose the **host whose audience = your target**.

For a liberal profession, two audiences matter:

- **Local clients and prospects.** Many liberal professions live off a geographically close client base. Your hosts: **local or regional** creators (business owners in your city, local officials, regional economic networks, local media) whose audience = your future clients. An educational comment under a local post makes you familiar in **your area**.
- **Peers in your profession.** Professional bodies, unions, trade journals, influential peers, adjacent experts (an employment lawyer orbits HR directors; an accountant orbits founders and bankers). Commenting there **builds your collegial reputation** — the source of referrals and introducers.

The choice of host is far from trivial: across **4,861 creators** analyzed, the median earns **36 impressions/comment**, a **top 10% 124 (~3.4x)** and a **top 1% 357 (~10x)**. The same comment, dropped under the right host, seen **3 to 10x more** *(full data: [who to comment on](/en/blog/sur-qui-commenter-linkedin))*. But raw reach isn't enough: you need the **right** reach — the one that contains your clients and peers.

To find these hosts without guessing, LinkHub's **[AI profile recommendation](/en/features/ia-recommandation-profils)** infers your target from your profile and searches **100,000+ profiles** for the creators with the best ROI for your niche — which you then group in [personalized feeds](/en/features/feeds-personnalises).

## 3. How to comment early and well (without spending all day)

Two reflexes make the difference: being **early** and writing **accurately**.

**Early.** Across 261,137 real comments, a comment posted within the **first 30 minutes** generates **391 impressions on average**, versus **104 after 24h** — about **3.8x more** *(see [when to comment](/en/blog/quand-commenter-sur-linkedin))*. A post gets most of its reach in its first hour; commenting then exposes you to its peak. You can't watch the feed continuously — that's the role of [personalized feeds](/en/features/feeds-personnalises), which show you your hosts' posts **as soon as they go live**.

**Accurately.** A good liberal-professional comment isn't a lecture, but it brings an **expert precision**: a nuance, an exception, a useful pointer, a question that extends the thread. Aim for **15-40 words**; a 10+ word comment weighs far more than a like in the algorithm. The tone must stay **informative and collegial**, never self-promotional *(method in [how to write a good comment](/en/blog/ecrire-bon-commentaire-linkedin), templates in [comment examples](/en/blog/exemples-commentaires-linkedin))*.

LinkHub helps you do both fast: spot the right post as soon as it's published and draft an **[AI-personalized comment](/en/features/ia-commentaires-personnalises)** (always reviewed and validated by you — essential when your professional responsibility is on the line) in seconds.

## 4. A concrete example (illustrative)

Picture an **accountant**. A local business outlet publishes a post: *"Reminder: the online filing deadline is approaching."* The post simplifies, and several comments express worry. This is the chance to add a **useful clarification** — without promising anything:

> *"Useful note for the small businesses reading this: the date varies by tax regime and filing method — for electronic filings, the window is usually wider than for paper. The habit to keep: check your own deadline on the official portal rather than relying on a single date. It saves a lot of end-of-month panic."*

This comment (≈ 55 words) **demonstrates expertise**, helps the local audience, and stays **strictly informative**: no "book a call," no "I'll handle it for you," no promise of results. The same logic applies to an **employment lawyer** adding nuance under a post on dismissals ("careful, the ruling cited concerns a specific case; the general rule remains…"). *Purely illustrative example — always adapt the substance and form to your professional ethics and real situation.*

## 5. Ethics: commenting without overstepping

This is what sets a liberal profession apart from a regular salesperson. Several regulated professions (lawyers, accountants, healthcare professionals, notaries, architects) are governed by strict **ethical rules** on communication. The principles vary by profession and country, but these red lines recur almost everywhere:

- **No solicitation / personalized canvassing.** You may **inform**, not **tout**. A comment ending with "contact me for your case" tips from information into prohibited solicitation. Stay on value, let people **come to you**.
- **No promise of results.** "I guarantee you'll win / save X" is barred in most professions. The ethics rules applicable to lawyers, for instance, forbid guaranteeing an outcome or sharing misleading information ([American Bar Association, 2016](https://www.americanbar.org/groups/litigation/committees/ethics-professionalism/practice/2016/linkedin/)).
- **Confidentiality.** Never comment on a real, identifiable case, even indirectly. Stay on the **general** and the educational.
- **Collegiality.** Under a peer's post, you argue and qualify — you don't **disparage**. A collegial tone is itself a signal of professionalism.
- **Double deontology.** If you practice or communicate across several jurisdictions, generally apply the **strictest** rule ([ABA, 2016](https://www.americanbar.org/groups/litigation/committees/ethics-professionalism/practice/2016/linkedin/)).

> **Bottom line.** Commenting **builds visibility and trust**, provided you stay **informative and collegial** and avoid solicitation and promises. When in doubt, refer to your professional body's code of ethics — this guide is no substitute for formal ethics advice.

## 6. Should you still post, or is commenting enough?

For a busy liberal professional, **commenting first** is almost always the right order. It costs less time, requires no audience, and builds a reputation **by proof** rather than self-promotion. You can build reputation, trust and first contacts through comments alone — the logic is detailed in [growing on LinkedIn without posting](/en/blog/grossir-linkedin-sans-poster).

Posting comes later, when you have the desire and the time: an in-depth article on a regulatory change in your profession anchors your **authority**. But even then, it's your commenting routine that will amplify the reach of your posts. The constant remains: on LinkedIn, **reputation is built in conversation**, not in monologue. And for a liberal professional, conversation is precisely where the trust that brings a client is born.

## FAQ

**Can a lawyer / accountant prospect through LinkedIn comments?**
They can **become visible and inform**, which is allowed and recommended. They must not **solicit** (personalized canvassing) or promise a result, which most professions' ethics rules forbid. Best practice: comment to add value, with no commercial call to action, and let the prospect come to you.

**How do I comment without breaching my professional ethics?**
Stay informative and collegial: add a general nuance or clarification, never about a real identifiable case (confidentiality), with no guarantee of results or solicitation. When in doubt, apply the strictest rule and refer to your professional body's code.

**Who should I comment on to reach a local client base?**
Local/regional creators whose audience = your future clients (business owners, economic networks, local media) and the bodies/media of your profession for peers. See [the ICP of a comment](/en/blog/icp-commentaire-linkedin) and the [AI profile recommendation](/en/features/ia-recommandation-profils).

**How much time does it take per day?**
With LinkHub, ~29s per comment (measured median, n = 44,523): 5 comments fit in a few minutes. A steady, controlled presence is compatible with a demanding professional practice.

**Does the choice of creator really change anything?**
A lot. At equal effort, commenting on a top 10% in your niche earns ~3.4x more impressions than the median, a top 1% ~10x (LinkHub data, 4,861 creators) — provided that audience contains your clients or peers.

## Sources & methodology

- **First-party LinkHub data** — impressions per comment (n = 657,722: 179 average, 35 median), creators commented on (`creator_stats_cache`, 4,861 creators: p50 = 36, p90 = 124, p99 = 357), timing (261,137 comments), measured writing time (n = 44,523). See [comments vs likes](/en/blog/commentaires-vs-likes-linkedin), [who to comment on](/en/blog/sur-qui-commenter-linkedin), [when to comment](/en/blog/quand-commenter-sur-linkedin).
- [American Bar Association — Attorney Advertising Restrictions on LinkedIn (2016)](https://www.americanbar.org/groups/litigation/committees/ethics-professionalism/practice/2016/linkedin/) · [van der Blom — Algorithm InSights Report 2025](https://www.linkedin.com/posts/richardvanderblom_chapter-1-algorithm-insights-report-2025-activity-7322514599126130688-Q895)
- Browse all our studies on the [LinkHub blog](/en/blog).