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Business Lawyers in O'Fallon, MO: 2026 rankings

15 business lawyers ranked by LFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Highest LFR Score in O'Fallon: The Kaiser Law Firm P.C., LFR Score 61/100; 4.8★ from 47 Google reviews.

  2. 3

    Open 24 hours (per Google): HKM Employment Attorneys LLP, posts 24/7 hours; ranked #3 of 15.

  3. 2

    Most-reviewed: A & L, Licker Law Firm, LLC, 365 Google reviews at 4.9★, the most of 15 ranked; ranked #2.

Rankings can't be bought. Lawyers can't pay to change their rank or score. How we rank

15 O'Fallon business lawyers are ranked here by LFR Score, from nine published factors. 3 are open 24/7, 4 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 5.0★ across 15 rated law firms.

Top 10 business lawyers in O'Fallon at a glance

Ranked by our published LFR Score from public data, not by payment; a rank is not an endorsement or a prediction of results.

Top 10 business lawyers in O'Fallon at a glance
RankBusinessLFR ScoreGoogle ratingBased inHoursNotable for
1The Kaiser Law Firm P.C.614.8★ (47)Chesterfield, 13 mi away—Top score
2A & L, Licker Law Firm, LLC594.9★ (365)Saint Charles, 10 mi awaySatMost reviews
3HKM Employment Attorneys LLP584.6★ (356)St. Louis, 23 mi awayOpen 24 hrs (Google)Open 24 hours
4The Small Business Law Center575.0★ (13)Saint Peters, 6 mi away——
5Vitale Law Firm575.0★ (237)Wentzville, 10 mi away——
6Schleiffarth Law Firm LLC565.0★ (84)Clayton, 22 mi awayOpen 24 hrs (Google)—
7TdD Estate Planning And Real Estate Attorneys525.0★ (7)Creve Coeur, 16 mi awayOpen 24 hrs (Google)—
8Sivia Law Wentzville514.6★ (33)Wentzville, 9 mi away——
9Gregory E Robinson PC505.0★ (29)St. Louis, 17 mi away——
10Law Offices of Edward A. Gilkerson494.5★ (25)Town and Country, 16 mi away——

All 15 business lawyers in O'Fallon, in rank order

Ordered by LFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.

Ranked by our published LFR Score from public data, not by payment; a rank is not an endorsement or a prediction of results.

  1. Ranked #1 in O'Fallon

    Based in Chesterfield, 13 mi away

    61/100LFR Score

    Ranked #1 because of its Google rating and practice area focus: 4.8★ from 47 Google reviews, listed on Google as “Business attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 4.8★ from 47 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    16090 Swingley Ridge Rd #360, Chesterfield, MO 63017
  2. Based in Saint Charles, 10 mi away

    59/100LFR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 365 Google reviews, the most in O'Fallon.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 4.9★ from 365 Google reviews
    Hours
    Mon–Fri 6 AM–5:30 PM · Sat 9 AM–2 PM · Sun closed
    Address
    1861 Sherman Dr, St Charles, MO 63303
  3. Based in Wentzville, 10 mi away

    57/100LFR Score

    Ranked #5 because of its Google rating and review volume: 5.0★ from 237 Google reviews.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 237 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    107 Creekside Office Dr, Wentzville, MO 63385
  4. Based in Creve Coeur, 16 mi away

    52/100LFR Score

    Ranked #7 because of its Google rating and practice area focus: 5.0★ from 7 Google reviews, listed on Google as “Estate planning attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 7 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12395 Olive Blvd Ste 200, Creve Coeur, MO 63141
  5. Based in Wentzville, 9 mi away

    51/100LFR Score

    Ranked #8 because of its Google rating and practice area focus: 4.6★ from 33 Google reviews, listed on Google as “Elder law attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 4.6★ from 33 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    511 W Pearce Blvd, Wentzville, MO 63385
  6. Based in St. Louis, 17 mi away

    50/100LFR Score

    Ranked #9 because of its Google rating and practice area focus: 5.0★ from 29 Google reviews, listed on Google as “Attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 29 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    670 Mason Ridge Center Dr Ste 125, St. Louis, MO 63141
  7. Based in Town and Country, 16 mi away

    49/100LFR Score

    Ranked #10 because of its Google rating and practice area focus: 4.5★ from 25 Google reviews, listed on Google as “Estate planning attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 4.5★ from 25 Google reviews
    Hours
    Mon–Fri 8:30 AM–6 PM · Sat–Sun closed
    Address
    13321 N Outer 40 Rd #500, Town and Country, MO 63017
  8. Based in Town and Country, 16 mi away

    49/100LFR Score

    Ranked #11 because of its Google rating and practice area focus: 5.0★ from 7 Google reviews, listed on Google as “Estate planning attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat closed · Sun 9 AM–5 PM
    Address
    13321 N Outer 40 Rd #500, Town and Country, MO 63017
  9. Based in Clayton, 23 mi away

    48/100LFR Score

    Ranked #12 because of its Google rating and practice area focus: 5.0★ from 20 Google reviews, listed on Google as “Estate planning attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 20 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    230 S Bemiston Ave Ste 530, Clayton, MO 63105
  10. Based in Clayton, 23 mi away

    47/100LFR Score

    Ranked #13 because of its Google rating and practice area focus: 5.0★ from 15 Google reviews, listed on Google as “Attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 15 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    7730 Carondelet Ave Apt 116, Clayton, MO 63105
  11. Based in Chesterfield, 13 mi away

    46/100LFR Score

    Ranked #14 because of its Google rating and practice area focus: 5.0★ from 3 Google reviews, listed on Google as “Estate planning attorney”.

    Based on 7 of 9 factors; bar status and recency not yet collected.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    400 Chesterfield Ctr E #400, Chesterfield, MO 63017

Also serving O'Fallon

20 more business lawyers within 25 mi that we can't rank yet: too few reviews, or a practice area we couldn't confirm. Listed A to Z.

Unranked business lawyers serving O'Fallon
BusinessGoogle ratingDistance
Beck & Beck Missouri Car Accident Lawyers4.9★ (30)In O'Fallon
Brown & Crouppen: Injury and Car Accident Lawyers4.9★ (28)In O'Fallon
Christine Miller Hendrix PC3.8★ (10)In O'Fallon
David E Woods Law5.0★ (20)In O'Fallon
Gonwa Law, LLC5.0★ (27)In O'Fallon
Hanson Law Offices3.2★ (9)In O'Fallon
Kruse Law Office3.4★ (13)In O'Fallon
Law Office of Michael R. Hanson3.8★ (12)In O'Fallon
Markell Estate Planning & Elder Law LC4.9★ (137)In O'Fallon
Polaris Estate Planning and Elder Law5.0★ (16)In O'Fallon
Richard R Veit Law Office5.0★ (13)In O'Fallon
St. Thomas Legal, LLC4.2★ (30)In O'Fallon
Staebell Law LLC4.6★ (20)In O'Fallon
Suddarth & Koor, LLC3.9★ (31)In O'Fallon
The O’Rourke Law Firm LLC4.6★ (21)In O'Fallon
Tim Lohmar Attorney at Law4.9★ (48)In O'Fallon
Traffic Law Counselors® 45BUCKS.com®4.9★ (238)In O'Fallon
Watkins Law Firm, P.C.3.2★ (37)In O'Fallon
Winghaven Law, LLC4.8★ (87)In O'Fallon
Woodlawn Law Offices3.6★ (12)In O'Fallon

How we ranked O'Fallon business lawyers

We scored 15 O'Fallon business lawyers on nine factors, weighted as shown. A law firm is ranked when its practice area is confirmed and it has 3 or more Google reviews or a claimed profile. A law firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.

Paid placement never changes a rank or score. Attorney advertising businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

LFR Score factors and weights
FactorWeightComputed fromIn O'Fallon data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Bar status10%An active bar or law society record matched to a lawyer at the firm (not measured until a record source is loaded)Not yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed firm on the listMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly office hours, Saturday, Sunday, and phones answered 24/7Measured
Practice focus15%How clearly the firm practises this area (its Google category and name)Measured
Proximity5%An office in the city scores highest, less the farther away it isMeasured
Claimed profile10%The firm has claimed its Law Firms Ranked profile (free and paid earn the same)Measured
Law Firms Ranked reviews10%Verified client reviews collected by Law Firms Ranked: their rating and how many there areMeasured

How to choose a business lawyer

  1. Check the lawyer’s status and any public discipline in the state bar or law society directory.
  2. Ask how many business law matters the lawyer handles each year, and who at the firm will do the work.
  3. Get the fee arrangement in writing: hourly, flat or contingency, and which costs are charged on top.
  4. Ask how and how often the firm will update you, and how fast it answers calls and emails.
  5. Read recent reviews for how the firm communicated and billed, not only for outcomes.
  6. Ask for a written estimate or flat fee for a defined piece of work before it starts.
  7. Meet more than one firm; many offer a short first consultation, sometimes free.

Questions to ask a business lawyer

  • How would you approach a matter like mine, and what are the realistic options?
  • How do you charge, and what will the total likely cost?
  • Who will be my main contact, and how quickly do you reply?
  • Which of my contracts most need a review?
  • Can you work on a flat fee or a monthly retainer?
  • Is there any conflict of interest that would stop you representing me?

Terms explained

Contingency fee
A fee that is a share of the money recovered, paid only if there is a recovery. Common in injury cases; not allowed for criminal defense or for securing a divorce.
Retainer
Money paid up front and held in a trust account, which the lawyer draws on as fees are earned.
Flat fee
One set price for a defined piece of work, such as a will or an uncontested matter.
Limited-scope representation
Paying a lawyer for part of a matter only, such as reviewing documents or coaching for one hearing (also called unbundled services).
Statute of limitations
The deadline to file a lawsuit or charge. It differs by state or province and by type of claim.
Good standing
A lawyer’s status as active and eligible to practise with a state bar or law society.
Law society
The body that licenses and disciplines lawyers in a Canadian province or territory.
Board certification
Recognition in a field of law by a state program or an organisation accredited for that purpose. Lawyers may only claim it when they hold it, naming the certifying body.
Attorney–client privilege
The rule that keeps confidential communications between a client and lawyer, made for legal advice, out of court.
Conflict check
The search a firm runs before taking a matter to make sure it does not represent someone on the other side.
Pro bono
Legal work done for free, usually for people who cannot afford a lawyer.
Legal aid
Publicly funded legal help for people with low incomes, through legal aid offices, public defenders or provincial legal aid plans.

Business lawyers in O'Fallon: frequently asked questions

Which business lawyer has the highest LFR Score in O'Fallon?

By LFR Score, the highest-ranked business lawyer in O'Fallon, MO is The Kaiser Law Firm P.C. with an LFR Score of 61/100. It has 4.8★ from 47 Google reviews. A & L, Licker Law Firm, LLC (#2) and HKM Employment Attorneys LLP (#3) follow. We ranked 15 business lawyers on nine factors, last updated November 9, 2026.

How many business lawyers are there in O'Fallon?

LawFirmsRanked ranks 15 business lawyers serving O'Fallon, MO. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which business lawyers in O'Fallon are open 24/7?

3 ranked business lawyers in O'Fallon post 24/7 hours. The highest-ranked are HKM Employment Attorneys LLP (#3), Schleiffarth Law Firm LLC (#6) and TdD Estate Planning And Real Estate Attorneys (#7). Hours come from each law firm's Google listing as of November 2026, so call to confirm.

Which business lawyers in O'Fallon work on weekends?

4 of 15 ranked business lawyers post Saturday hours and 4 post Sunday hours. The highest-ranked open Saturdays are A & L, Licker Law Firm, LLC (#2), HKM Employment Attorneys LLP (#3) and Schleiffarth Law Firm LLC (#6). Posted hours are office hours; many firms meet clients by appointment outside them.

What Google rating do O'Fallon business lawyers have?

The median Google rating among 15 rated business lawyers in O'Fallon is 5.0★, with a median of 25 reviews. A & L, Licker Law Firm, LLC has the most, 365 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does LawFirmsRanked rank business lawyers?

Each business lawyer gets a 0–100 LFR Score from nine published factors, led by reputation (25%), practice focus (15%), review volume (10%) and recency (10%). A law firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only law firms with a confirmed practice area and 3 or more reviews, or a claimed profile, are ranked.

Do business lawyers outside O'Fallon count in this ranking?

Yes, if they are within 25 mi of the O'Fallon city center, our service radius for business lawyers. Each listing shows where the law firm is based and how far away it is. Proximity is 5% of the LFR Score, so a nearby law firm gets a small edge.

Can business lawyers pay to rank higher on LawFirmsRanked?

No. The LFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured law firms may appear above the list, labelled Attorney advertising and showing their honest rank.

How do business lawyers in O'Fallon, MO charge?

Business lawyers bill hourly for disputes and complex deals and often offer flat fees for company formation, standard contracts or a monthly general counsel arrangement. Lawyers using Clio billed an average of $400 an hour in this area (Clio Legal Trends data, October 2026; all areas $362). Ask for the fee arrangement in writing before you agree.

When should a small business talk to a lawyer?

Common points are choosing a business structure, partner or shareholder agreements, signing a lease or major contract, buying or selling a business, and when a dispute starts. This is general information, not legal advice.

How is this list of business lawyers in O'Fallon, MO ranked?

By LFR Score only, from public data on reviews, practice focus, office location and hours. Firms labelled “Attorney advertising” paid for that placement; payment never changes a rank, and a rank is not an endorsement.

Does a lawyer need an office in O'Fallon?

No, but the lawyer must be licensed in your state (or, for federal matters such as immigration, in some state). A local office makes meetings and court appearances easier, so proximity is one of our factors.

Update log for O'Fallon

  1. November 2026: LFR Scores recalculated for 15 business lawyers serving O'Fallon.