The Duncan Law Firm, LLPGeneral practice lawyer in Sioux Falls, SD

Also ranked: #15 of 24 estate planning and probate lawyers in Sioux Falls#19 of 30 divorce and family lawyers in Sioux Falls

The Duncan Law Firm, LLP is a general practice lawyer at 515 W Landscape Pl Ste 101, Sioux Falls, SD 57108, ranked #11 of 61 general practice lawyers in Sioux Falls and rated 5.0 from 17 Google reviews. Open Monday to Friday.

Facts on this profile come from public sources and from the firm. This is not legal advice, and contacting the firm does not make it your lawyer. Check the lawyer’s standing with the state bar or law society before you hire.

Sioux Falls, SDUpdated November 9, 20260 paid placements in any rankingHow we rank

Call (605) 361-9840 Website ↗

Key facts

Key facts about The Duncan Law Firm, LLP
Address	515 W Landscape Pl Ste 101, Sioux Falls, SD 57108Get directions
Phone	(605) 361-9840
Website	ddlawsd.com
Hours	Monday to Friday: 8 AM – 5 PM
Google rating	5.0 from 17 Google reviews

Practice areas

Each practice area shows the evidence we matched it on.

General Practicemain practice areaGoogle main category
Personal Injuryadditional Google category
Divorce & Family Lawadditional Google category
Estate Planning & Probateadditional Google category

Service area

Based in Sioux Falls, SDView on map

Opening hours

Opening hours for The Duncan Law Firm, LLP
Day	Hours
Monday	8 AM – 5 PM
Tuesday	8 AM – 5 PM
Wednesday	8 AM – 5 PM
Thursday	8 AM – 5 PM
Friday	8 AM – 5 PM
Saturday	Closed
Sunday	Closed

Open evenings — no
Open Saturdays — no
Open Sundays — no

Questions about The Duncan Law Firm, LLP

How is The Duncan Law Firm, LLP ranked in Sioux Falls?

The Duncan Law Firm, LLP is ranked #11 of 61 general practice lawyers in Sioux Falls by LFR Score, with 63 out of 100 as of November 2026. The score weighs reputation, bar status, review volume, recency, availability, practice focus, proximity, claimed profile and law firms ranked reviews. No business can pay to change its rank.

What are The Duncan Law Firm, LLP’s hours?

The Duncan Law Firm, LLP is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What do Google reviews say about The Duncan Law Firm, LLP?

The Duncan Law Firm, LLP has a rating of 5.0 from 17 Google reviews. The LFR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact The Duncan Law Firm, LLP?

Call The Duncan Law Firm, LLP on (605) 361-9840. The business is at 515 W Landscape Pl Ste 101, Sioux Falls, SD 57108. Its website is linked in the key facts on this page. Ask how the firm charges before the first meeting, and keep confidential details for after its conflict check.

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Compare nearby general practice lawyers

The Duncan Law Firm, LLP compared with nearby businesses
Business	Rank	LFR Score	Google rating	Saturday	Sunday	Distance away
The Duncan Law Firm, LLP (this business)	—	63	5.0 (17)	No	No
Arends Law, P.C.	#9	63	4.7 (23)	No	No	0.1 mi
Laughlin Law	#10	63	4.8 (22)	No	No	5.1 mi
Hughes Law Office	#12	63	4.8 (21)	No	No	2.6 mi

See all 61 ranked general practice lawyers in Sioux Falls