OSC Law has served Rotorua and the Bay of Plenty with plain-English legal advice for more than a century. When the matter is consequential — a business decision, a family moment, a legacy to protect — our team is beside you.
OSC Law — O'Sullivan Clemens — is one of Rotorua's most enduring legal firms, serving generations of families, landowners, and businesses across the Bay of Plenty since the early 1920s.
We're a boutique firm with a broad practice: family law, commercial, property, trusts and estates, employment, civil litigation, and forestry. Our approach is straightforward — clear advice in plain English, with a results-based philosophy and a practical, value-for-money attitude.
We're proud to be part of the Law Plus group, giving our clients access to national reach while keeping the relationships local.
Whether you're buying a home, building a business, protecting an estate, or navigating a dispute — our lawyers meet you where you are, with the depth of a full-service firm and the attention of a boutique.
Separation, relationship property, parenting arrangements, and protection orders — handled with discretion and care.
Business formation, shareholder agreements, commercial contracts, and transactions across every stage of growth.
Residential and commercial conveyancing, subdivisions, leases, and cross-lease advice for buyers, sellers, and investors.
Drafting, review, and administration of trusts and wills — structured to protect what matters across generations.
Probate, estate administration, enduring powers of attorney, and succession planning for families and businesses.
Debt recovery, contract disputes, property disputes, and all levels of civil court representation in New Zealand.
Employment agreements, disciplinary matters, redundancy, and Employment Relations Authority representation.
A specialist practice area serving the Bay of Plenty's forestry sector — harvest rights, land use, carbon, and contracts.
Alternative dispute resolution services for parties seeking a faster, more private path than litigation.
What begins as a law office becomes, over time, part of a town's fabric. The deeds, the disputes, the quiet settlements — they become a century of paper and handshakes. This is ours.
O'Sullivan Clemens opens its doors on Arawa Street. The firm is established to serve the town's growing farming, forestry, and family-business community.
As Rotorua grows with tourism and forestry, the firm expands its practice to include commercial, property, and specialist forestry law.
Families we served in the 1920s return for their children's homes, their grandchildren's wills, their great-grandchildren's businesses.
OSC joins the Law Plus group, gaining national reach while preserving the personal, local relationships that have defined the firm for four generations.
Led by managing partner David Rendall, OSC Law remains Rotorua's enduring firm — plain-English counsel, results-based philosophy, one call away.
Managing Partner · Director, Law Plus Group
David leads OSC Law with the same values that have defined the firm for a century: clarity, craftsmanship, and a genuine interest in the people we serve. His practice spans commercial law, property, trusts, and forestry — the disciplines that have shaped the Bay of Plenty for a hundred years.
As a Director of the Law Plus group, David brings national expertise to local matters, and local judgement to national ones.
Most legal matters aren't one-offs. They're part of a bigger life — a home you're buying, a business you're building, a family you're protecting. Here's how we show up.
Legal writing that reads like a person, not a statute. You'll know exactly what we're doing, what it costs, and why it matters — at every step.
We measure our work by the outcome, not the hours. Clear scopes, clear estimates, and no surprises on the invoice.
A century in Rotorua means we know the region, the industries, and often the other party's lawyer. That context shortens timelines and improves outcomes.
OSC drafted my parents' trust, handled our house, and stood with my brother through a separation. Three generations, three matters, one firm. That's rare now.
Most of our enquiries start with a phone call or a short message. Tell us what's on your mind — we'll tell you honestly whether and how we can help.
If the matter is on your mind, it's worth a conversation. Phone the office, or send a short message. We'll take it from there.