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)
- 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.
No commitment · you approve every comment
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). 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 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: 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). 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 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.
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). 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, 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, templates in comment examples).
LinkHub helps you do both fast: spot the right post as soon as it's published and draft an AI-personalized comment (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).
- 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).
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.
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 and the AI profile recommendation.
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, who to comment on, when to comment. - American Bar Association — Attorney Advertising Restrictions on LinkedIn (2016) · van der Blom — Algorithm InSights Report 2025
- Browse all our studies on the LinkHub blog.
About the author
Founder of LinkHub
Yannis writes about social selling, LinkedIn comments and visibility. He builds LinkHub, the extension that helps you attract qualified clients through your comments.
View profileNo commitment · you approve every comment
