Throughout his legal career, Joseph Hanna, Jr. has combined tax law practice with a sustained commitment to professional education and legal scholarship. As a senior partner at Hanna Strader PC in Portland, Oregon, Joseph Hanna has built extensive experience in tax litigation, estate administration, and business taxation. He has produced publications to help attorneys navigate complex legal and financial questions.

Joseph Hanna advises individuals and corporations on matters involving wealth transfer, wills, trusts, probate, and personal tax planning. His work also includes international estate structures, charitable organizations, private foundations, executive compensation, and real estate and business entity taxation. In contentious matters, Joseph Hanna has represented taxpayers before the Internal Revenue Service and in tax and federal courts. His background includes preparing tax protests, filing petitions, seeking private letter rulings, and addressing the tax consequences of corporate mergers, liquidations, and reorganizations.

Moreover, Joseph Hanna co-authored multiple editions of trust and will reference books for practitioners and contributed articles to publications including The Tax Lawyer, the Georgetown Law Journal, and professional estate planning journals. His writing covers topics ranging from corporate tax structures to marital deductions, estate taxation, and administering decedents' assets. These works reflect a career devoted not only to resolving individual legal problems but also to documenting and explaining complex areas of tax law.

His professional achievements include 20 consecutive years of recognition in The Best Lawyers in America for Trusts and Estates. Joseph Hanna has also demonstrated a creative side through his children's book, Tailgate Tilly (The Tenth Reindeer), published in 2016, and his work on The Trials of Jesus Christ.