Leighton Tyau

Attorney & Entrepreneur

I’m Leighton and I’m passionate about personal finance, tax minimization, and avoiding unintended consequences (good planning).

When I’m not drafting wills and trusts or advising clients, I’m usually taking care of my daughter, walking my dog, or having a beer with friends.

I’ve been a lifelong entrepreneur, always owning one business or another since I was a teen. I was born and raised in Hawaii and went to Oregon for college. In 2006, after receiving my bachelors in the field of economics, I moved to Arizona.

After graduating law school in 2011, I started my law career in family law and an ecommerce business at the same time. As the business grew, I transitioned to small business law taking on business clients while running a successful company.

I started Copper State Estate Planning because of my passion for personal finance and the pursuit of the American Dream. Combining those two passions with my expertise in tax law, I decided that estate planning was my calling.

As such, I decided to transition myself to helping families protect and pass on their wealth.

Comprehensive Plans Means Happy Families

A comprehensive estate plan should consider all of your life’s goals and desires. A plan needs to consider life, death, and beyond. By combining our expertise in business, financial planning, and divorce, we are able to guide you through all of life’s ups and downs.

The Copper State Story

Frustrated at watching the fallout from the same cookie cutter plans churned out by cheap software, I decided to combine my divorce, financial, and estate planning expertise to start a new law firm.

A firm focused on crafting truly comprehensive plans that preserved family harmony. A firm focused on getting the plan right; not churning out documents. A firm focused on building your legacy.

Our Vision

To craft comprehensive plans which result in a lasting legacy and happy families. We want to help you build and pass on your legacy.

Our Mission

To avoid the mistakes of the past by crafting truly individualized plans which withstand the test of time.

Core Values

We believe that costs matter, in using the right tool for the job, and that as counselors we should listen first.

Let’s Make a Plan

Don’t worry, we’ve got this. We’ll guide you through every step of the process and make sure everything will be okay.

Call us today to speak with your legacy guide.

Services Offered

We help everyone craft a comprehensive and thorough life plan to guarantee that their legacy will endure.

Estate Planning

The focus of this practice is trusts & estates work. From revocable living trusts to GRATS, SLATS, and testamentary trusts. We will draft a plan to meet your needs.

Prenuptial Agreement

No one plans to divorce. And no one plans to crash their car. A prenuptial agreement gives both parties a plan in case the worst happens.

Wealth Transfer Planning

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Wealth Preservation

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Business & Succession Planning

What will happen to your business when you die or are incapacitated?
If you own a business or part of a business, you need a succession plan for death or incapacity.

Tax Planning

The combined effects of all taxes can reduce your bequest by over half! Good tax planning is a requisite if you don’t want the IRS taking your hard earned money.

contact us

Let’s Talk

I’m sure you have a lot of questions. And we’re here to answer them. Just give us a call or fill out the form to the right and we’ll call you.


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