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Mellor Olsson Lawyers

Mellor Olsson Lawyers

3.9(42 reviews)See reviews ↓·Adelaide

About the company

Mellor Olsson is a full-service South Australian law firm that has been part of the state's legal fabric for over 100 years. Its origins date back to 1875 through the firm of W&T Pope, and the name Mellor Olsson was first used after the merger of Mellors and Olssons in February 1992. Olssons originally formed in 1909. The firm is one of the largest and oldest law firms operating in South Australia, employing over 90 staff, including a team of over 40 lawyers and registered conveyancers. It remains independent and South Australian focused, and does not outsource any of its operations overseas.

Mellor Olsson has offices in Adelaide, Port Lincoln, Clare, Barossa Valley, Bordertown, Kadina, Keith, and McLaren Vale, and regularly visits towns in the Barossa, Eyre Peninsula, Mid North, South East, and Yorke Peninsula. The firm has merged with Bonnins in 2001, Jenkins Anderson in 2013, and Heuzenroeders Lawyers in 2023. It provides legal services to businesses, individuals and government entities across South Australia, with main services including business, individual, and government legal services.

What customers say

Based on genuine customer reviews

Mellor Olsson Lawyers has built a following among Adelaide clients for estate planning and probate work, though feedback is mixed. Several reviewers describe assistance with wills, document certification and business guidance as reliable and clearly explained. Named staff such as Siobhan Dawe, Nick Graham, Andrew, Celeste and Marissa are singled out for professionalism, patience and prompt replies, with clients noting that legal matters were translated into everyday language. A point that comes up often is the compassion shown during bereavements, and the speed of document preparation when deadlines pressed.

Conveyancing and general legal advice also draw positive comments, as does the friendliness of reception staff. The picture is not uniform. Other accounts describe probate applications that stalled, emails left unanswered and repeated chasing before progress occurred. Some clients report that invoicing was not broken down task by task, that fees exceeded initial discussions, and that responses to billing queries took months. Delays were attributed to third parties in some instances. The recurring theme across the critical reviews is communication and cost transparency rather than the quality of legal outcomes. Estate administration remains the area most often discussed.

Reviews

Reviews are taken from publicly available sources.

EM
Emily Mattschoss1 August 2026

We highly recommend Mellor Olssen. Andrew, Celeste & Marissa have offered us strong legal support in a caring and professional way. We appreciate the way they explain legal matters in everyday language that offers clarity and understanding. The legal support provided during a challenging time felt like such a relief and we were amazed by their ability to provide much needed documents during a time sensitive period. If your looking for legal support that feels like you have someone in your corner, then we highly recommend the team at Mellor Olssen. As a combined team they not only work well together, but they offer a rich resource of knowledge and experience to draw from that can benefit the outcome you may be seeking.

PN
Pras Nair19 June 2026

Rebecca Duff is not just the best lawyer we have worked with in our space but a superhero. Thank you for everything.

VA
Vicky AngelopoulosTzatziki8 June 2026

I highly recommend Mellor Olsson for probate matters. Siobhan Dawe and the team were incredibly accommodating, professional, and responsive throughout the entire process. Any questions or concerns were addressed promptly, and their immediate communication provided great peace of mind during a difficult time. Siobhan's support & attention to detail made the probate process as smooth and stress-free as possible. Thank you for your outstanding service. Vicky

SC
Steven Cole3 June 2026

Siobhan Dawe, Estate Planning Senior Associate, created my estate documents consisting of a Will, General and Enduring Power of Attorney, and Advance Care Directive. She made what could have been a complicated process very easy to understand. The cost for her services was very reasonable. If any of these estate documents require updating in the future, I will definitely contact Siobhan.

SS
suzanna skoljarev14 May 2026

Am very happy with everyone who has helped me . The lawyers, conveyancers, receptionists have all been efficient, professional and friendly, no matter what I have been dealing with. The compassion has been very appreciated as well. Am most thankful. 🌸 🙏🌷 Sue Skoljarev.

BG
Brigid G7 May 2026

Absolutely disgraceful experience. Shockingly poor communication, extreme delays, and almost impossible to get proper updates without constantly chasing them. Emails regarding serious billing concerns were ignored for months, yet they later attempted to accuse me of “delaying” the matter and threatened interest charges. Fees kept increasing far beyond what was originally discussed, while the final outcome was devastatingly worse than what had been indicated. At no stage did the firm acknowledge any responsibility for the delays, lack of communication, or poor handling of the matter. The entire experience was incredibly stressful, deeply frustrating, and completely unprofessional. I would strongly warn others to think very carefully before engaging this firm.

SG
Simon G29 April 2026

I would like to rate 0 star! Extremely disappointing experience. Throughout the matter, progress was slow and updates were minimal. Staff were often unavailable, and I had to repeatedly chase for responses. Despite the delays, I was charged more than originally discussed. It took more than three months to receive a response to a simple invoice enquiry, yet I was then told interest would be charged due to the delay — despite the lack of communication being on their side. The final outcome was also far worse than what had been proposed. Overall, the experience felt poorly managed, unresponsive, and not reflective of the level of service expected. I would definitely not recommend.

Law firms & solicitors in Adelaide compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 12 businesses in this category in Adelaide are compared.

RankProviderRatingReviewsOpen Sat.
1WOODS & CO LAWYERS PTY LTD★ 5,0161No
2Belperio Connell Lawyers★ 5,0120No
3Tindall Gask Bentley Lawyers★ 5,043No
4Indigo Lawyers★ 5,027No
5Tindall Gask Bentley Lawyers, Gawler and Barossa Valley region★ 5,09No
12Mellor Olsson Lawyers (this page)★ 3,942No
Contact
+61884143400www.molawyers.com.auLevel 6/89 Pirie St, Adelaide SA 5000
Working hours
Monday08:30–17:00
Tuesday08:30–17:00
Wednesday08:30–17:00
Thursday08:30–17:00
Friday08:30–17:00
SaturdayClosed
SundayClosed