Bozena M. Diaz

Bonnie Diaz focuses her practice on tax planning and advisory services for middle-market corporations, limited liability companies, partnerships, not-for-profit institutions and individuals. She advises clients on a wide range of domestic and cross-border transactions, including entity mergers and acquisitions, tax-free corporate reorganizations and Section 351 transactions, and business and real estate joint ventures. Bonnie also assists nonprofit clients with obtaining and maintaining their federal tax-exempt status, and the treatment and minimization of unrelated business taxable income.

Bonnie is also experienced in handling a variety of federal and state tax controversies related to income and withholding tax issues, including representation of clients before the IRS and various other deferral and state tax tribunals, and the preparation of FBARs and IRS Forms 5471.

Bonnie counsels clients with respect to all aspects of employee benefits under the Internal Revenue Code of 1986 and the Employee Retirement Income Security Act of 1974 (ERISA), including the design, administration, compliance and termination of qualified plans (401(k) and other pension plans) and employee welfare benefit plans (including cafeteria plans, group health plans and COBRA requirements), as well as on issues of ERISA fiduciary responsibilities, and benefits issues that arise in connection with merger and acquisition and joint venture transactions (including review of transaction documents, treatment of equity awards, Section 280G parachute payments, plan terminations and multi-employer plan withdrawal liability issues). She is also actively involved in structuring nonqualified deferred compensation arrangements and equity compensation plans (such as stock option plans, restricted stock plans and profit sharing/executive bonus agreements), and in negotiating and drafting employment and severance agreements.  

Bonnie has published “Choices of U.S. Entities for Inbound Investors” in the March 2017 issue of German American Chamber of Commerce Legal & Tax Newsletter. She also published a number of times on various aspects of the Internal Revenue Code Section 385 Earnings Stripping Regulations.

Bonnie received her LL.M. in Taxation from the New York University School of Law, and her J.D. from the Georgetown University Law Center, where she was the editor of and published in the Georgetown Journal on Poverty Law and Policy. She provides pro bono representation to undocumented children under the age of 18 in both the Family Court and before U.S. Immigration Authorities.


  • New York University School of Law (LL.M. in Taxation, 2009)
  • Georgetown University Law Center (J.D., 2005)
  • Drew University (B.A., 2000)

Bar & Court Admissions

  • New Jersey
  • New York
  • U.S. District Court, District of New Jersey
  • U.S. District Court, Eastern and Southern Districts of New York
  • U.S. Tax Court
  • U.S. Court of Federal Claims