Lucas T. "Luke" Ritchie

Companies large and small frequently engage Roger to provide counsel on a broad spectrum of employment and immigration issues. With extensive experience and a national reputation for being at the forefront of change in immigration law, Roger is able to find positive solutions to his clients' varied needs. Roger counsels universities and companies in the healthcare, technology, and energy sectors on securing temporary and permanent visas for foreign national employees, including H-1B visas and...

Mari Perczak is the co-practice group leader of the Construction Defects department at Burg Simpson. She and her department have achieved Tier 1 status by US News and World Report, which is the highest-ranking available. Ms. Perczak has more than thirty years of experience as a Colorado trial lawyer and has successfully handled many large construction defect cases for Colorado homeowners and homeowner associations. In 2020, Ms. Perczak was lead trial counsel in a lengthy arbitration where she...

Heath J. Briggs is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Heath J., who practices law in Denver, Colorado, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Heath J. is held by other top lawyers in the same geographic and legal practice area.

Darren E. Nadel represents employers nationally in complex litigation and employment law. He represents clients in high risk, high value cases involving trade secrets and unfair competition, employee benefits litigation and whistleblower and Sarbanes Oxley matters. Darren has represented employers in litigation brought under: Trade secrets and unfair competition laws The Employee Retirement Income Security Act Sarbanes-Oxley and other whistleblower laws Wage and hour laws Anti-discrimination ...

Phil earned his bachelor's degree from the University of Colorado in 1975 and earned his J.D. from Northeastern University School of Law in 1978. He has practiced immigration law exclusively since 1985, including all aspects of business and family immigration, as well as deportation and removal defense. In recent years, he has focused primarily on representing individuals placed in removal proceedings. He has been a member of the American Immigration Lawyers Association since 1985 and served ...

Mr. Abraham, a founding Partner of Brown Gren Abraham & McCracken, focuses his practice on representing insurance carriers and employers in workers’ compensation litigation. He prides himself in personally handling each claim in an aggressive manner while not only keeping the client informed of the progress of the case, but in the drivers’ seat throughout the life of the litigation process. This styled approach allows him to be a step ahead of his clients’ opponents and ...

Bud Bourke has extensive experience in business, residential and commercial real estate and tax planning for individuals, partnerships and corporations. He works with individuals (regardless of net worth), executives, closely-held business owners and professionals within Colorado, across the nation, and internationally, to manage their legal and legacy concerns and their multi-generational family businesses. He has years of experience with the preparation of simple and complex estate plans an...

Stephen J. Dietrich is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Stephen J., who practices law in Denver, Colorado, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen J. is held by other top lawyers in the same geographic and legal practice area.

Mike Fredregill is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Mike, who practices law in Denver, Colorado, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mike is held by other top lawyers in the same geographic and legal practice area.

Betty leverages extensive corporate finance and M&A transactional experience to guide companies through the entire corporate lifecycle, from formation through growth and planned exit. Her clients include established and emerging growth companies as well as venture capital and other private equity funds. She works with clients in a variety of industries, including software, technology, telecommunications, analytics, medical devices, healthcare, fintech and manufacturing. Betty regularly ac...