Alison E. Zinn

Amanda Smith Greenberg is a commercial real estate and land use planning attorney whose clients include developers, owners, investors and tenants. A trusted advisor, Amanda represents clients in purchase, sale and development transactions, including mixed-use projects, industrial developments, large scale residential developments, office buildings, hotels, shopping centers and sports and entertainment stadiums and venues. She is an expert on title and survey matters and development approvals,...

Nicola has dedicated her legal career to the practice of family law. Nicola’s practice is settlement-focused, as that is usually what is most favorable to her clients. Nicola excels in negotiation and mediation, working to obtain optimal resolutions for her clients outside of the courtroom. However, when litigation becomes necessary, Nicola is a fierce advocate for her clients. With a penchant for thorough preparation, Nicola is confident and effective in the courtroom. Nicola handles a...

Michael E. Kaplan is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Michael E., who practices law in Denver, Colorado, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael E. is held by other top lawyers in the same geographic and legal practice area.

Catherine Puttmann, Esq. is a founding shareholder at Sherr Puttmann Akins Lamb, PC. Ms. Puttmann received her B.A. in political science from the University of Colorado, Boulder in 1994, and her J.D. in 1997 from the University in Houston. Ms. Puttmann is an experienced litigator and negotiator. She was a criminal prosecutor with the 18th Judicial District from 1999 until 2005 when she moved to private practice, specializing in family law. Ms. Puttmann is an advocate for alternative dispute r...

James P. Lane is a top attorney recognized by Best Lawyers in the practice area(s) of Public Finance Law and Tax Law. James P., 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 James P. is held by other top lawyers in the same geographic and legal practice area.

Marcie was born in Greeley, Colorado in 1965. She grew up in Cody, Wyoming and attended Chadron State College in Nebraska where she majored in Criminal Justice. Marcie graduated from the University of Denver College of Law in 1990 and moved to Oregon. She practiced in Oregon for 12 years where her practice initially included creditor's rights and commercial litigation. She then moved into the areas of elder law, estate planning and administration before moving back to Colorado in 2001. Marcie...

Tanya brings a unique perspective to Sherr Puttmann Akins Lamb PC through her extensive background as a Master of Social Work (MSW). Prior to graduating cum laude from DePaul University College of Law, Tanya spent eight years as a Licensed Clinical Social Worker conducting custody evaluations and providing courtroom testimony of her custody findings and recommendations. Her experience gives her special insight into cases involving mental health and substance abuse issues, as well as complex d...

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 ...

Mary Sue Greenleaf is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and Litigation - Construction. Mary Sue, 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 Mary Sue is held by other top lawyers in the same geographic and legal practice area.

Tom Ragonetti has been frequently referred to as the preeminent land use attorney in Colorado and the Rocky Mountain region. His practice is focused on land use, government regulation, public-private transactions and related matters. He is a recognized specialist in land use planning and regulation, public finance for private development, annexation, urban development, zoning and historic preservation. Beyond his unparalleled expertise in land use and governmental regulation, Tom has comprehe...