Aberdeen's Trusted Advisory Firm

Decades of precision guidance for the decisions that endure

At Squire-Lussem Agency, we bring clarity to complex legal and financial matters. Your future deserves counsel rooted in experience, integrity, and an unwavering commitment to your interests.

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Squire-Lussem Agency office

A tradition of thoughtful counsel in the heart of Aberdeen

Squire-Lussem Agency was founded on a simple conviction: that individuals and families deserve advisors who listen first and act with purpose. Based at 902 S Main St, we have served the Black Hills community with the same careful attention to detail that characterizes every engagement we undertake.

Our practice spans estate planning, tax strategy, business formation, and financial advisory — disciplines that intersect at the moments that matter most. We do not believe in one-size-fits-all solutions. Every client receives guidance shaped by their unique circumstances, goals, and timeline.

25+
Years of Service
500+
Clients Advised
4
Practice Areas

Comprehensive advisory services tailored to your needs

From securing your family's future to navigating complex business structures, we provide the expertise you need with the personal attention you deserve.

Estate Planning

Protect what matters most with carefully crafted wills, trusts, and succession plans. We help you preserve your legacy and provide peace of mind for the generations ahead.

Tax Strategy

Navigate the complexities of federal and state tax law with confidence. Our advisors work proactively to minimize liability and maximize the resources available to you.

Business Advisory

From entity formation to operational compliance, we guide business owners through the legal and financial decisions that shape sustainable growth in South Dakota and beyond.

Financial Planning

Build a roadmap for financial security that aligns with your values and aspirations. We offer holistic planning that considers every dimension of your financial life.

Legal Counsel

Whether you are facing a dispute, reviewing a contract, or seeking clarity on your rights, our legal team delivers pragmatic counsel grounded in thorough preparation.

Succession Planning

Ensure a seamless transition for your business or estate. We design strategies that honor your intentions and protect the interests of those you leave behind.

The difference lies in how we work

We measure our success by the confidence our clients feel in their decisions — and that confidence is built on a foundation of genuine expertise and personal attention.

Integrity in Every Engagement

We never recommend a course of action we would not take for ourselves. Transparency, honesty, and ethical rigor guide every recommendation we make.

Deep Local Knowledge

Rooted in Aberdeen, we understand the unique legal landscape, tax considerations, and economic realities that affect clients across South Dakota.

Proactive, Not Reactive

We do not wait for problems to arise. Our approach is forward-looking — identifying opportunities and risks before they become urgent concerns.

Client-Centered by Design

Your goals shape our strategy. We take the time to understand your priorities so that every plan we craft feels like it was written for you alone.

Squire-Lussem helped us navigate a complex estate matter with grace and expertise. Their attention to detail and genuine care for our family's wellbeing made all the difference.

A Valued Client

Estate Planning

Your future deserves thoughtful guidance

Whether you are planning for the years ahead or need counsel on a pressing matter, we are here to help. Reach out today for a confidential consultation.

We would welcome the opportunity to speak with you

Contact Information

Address 902 S Main St, Aberdeen, SD 57401
Office Hours Monday – Friday: 9:00 AM – 5:00 PM

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