Thaine Lennox-Gentle

Curt Sullan was born in Fort Lauderdale, Florida, in 1962, and grew up near Chicago. He graduated from Glenbrook North High School in 1980 and from the University of Maryland in 1984. He received a bachelor’s degree in political science, with a double minor in English and Philosophy. Mr. Sullan graduated from the University of Denver College of Law in 1988 with a Juris Doctor. While at the University of Denver, Mr. Sullan served on two law reviews and was a member of the Moot Court. Mr....

Abigail S. Wallach is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Abigail S., who practices law in Denver, Colorado, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Abigail S. is held by other top lawyers in the same geographic and legal practice area.

Katy O'Brien is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Katy, who practices law in Denver, Colorado, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katy is held by other top lawyers in the same geographic and legal practice area.

Jim Rigberg is a seasoned business lawyer who provides end-to-end client representation in a variety of contexts. With particular expertise in the real estate and healthcare industries, Jim puts his years of courtroom experience to work advising clients on front-end strategies to secure optimal leverage and avoid exposure to costly litigation down the road. Jim also focuses his practice on Intellectual Property, where he helps clients protect their investments in their brands and creative out...

Ms. Lavery earned a B.A. with Honors, with majors in Political Science and International Studies from the University of Denver in 1992; thereafter, earning her law degree from DU in 1995. After law school, she did not pursue work in the legal field, instead working in management, sales, and consulting positions in both large corporate settings and small local businesses. She returned to the legal profession in 2010, working as a paralegal in the areas of family law and juvenile law before joi...

Arnulfo D. Hernández is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice and Immigration Law. Arnulfo D., who practices law in Denver, Colorado, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Arnulfo D. is held by other top lawyers in the same geographic and legal practice area.

William Peffer is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. William, 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 William is held by other top lawyers in the same geographic and legal practice area.

Christopher J. Neumann is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law, Environmental Law, Litigation - Environmental and Real Estate Law. Christopher J., who practices law in Denver, Colorado, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher J. is held by other top lawyers in the same geographic and legal practice area.

Paige has extensive experience in both business law and trusts and estates. She advises individuals, families, and business owners on all aspects of estate planning and business succession planning. She has represented clients in a variety of complex wealth and succession transactions, including developing and implementing asset protection strategies and complex gift and estate planning strategies. She assists clients with trust administration and probate proceedings, and also has extensive e...

Karen Chapman is a Member in Sherman & Howard’s Corporate and Business Department. She is a highly respected specialist in mergers and acquisitions and corporate financings, leading teams that close sophisticated transactions valued in the hundreds of millions and billions of dollars. Karen plays a preeminent role representing airlines in jet fuel storage and distribution system leasing, contract and financing matters at major airports throughout the United States. Karen’s pra...