Atty. Eric Waeckerlin
Accomplished lawyer providing legal guidance across numerous state and federal environmental, public lands and natural resource issues. Known for finding pragmatic solutions to complex problems.
Environmental Law & More Attorney · Serving Denver, CO
Profile Summary
About Eric Waeckerlin at a Glance
Eric Waeckerlin is a litigation and environmental attorney based in Denver, Colorado, practicing at Greenberg Traurig. Admitted to practice in District of Columbia, District of Columbia Bar, Wyoming, Wyoming State Bar, Colorado, Colorado Bar Association, and Montana, State Bar of Montana. Educated at The University of Montana (J.D., 2005) and University of Wyoming (B.S., 1998). Recognitions include Best Lawyers in America — Environmental Law (2026), Best Lawyers in America — Litigation - Environmental (2026), and Best Lawyers in America — Natural Resources Law (2026). Serves clients in Denver, CO and the surrounding metropolitan area.
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About Eric Waeckerlin
- Accomplished lawyer providing legal guidance across numerous state and federal environmental, public lands and natural resource issues
- Known for finding pragmatic solutions to complex problems
- Has a deep understanding of clients’ businesses and operations
- A widely respected environmental lawyer, Eric Waeckerlin employs a thoughtful, solution-oriented approach in resolving all stages of complex environmental permitting, enforcement, policy and regulatory matters
- He represents clients in major litigation in federal and state courts, and before administrative agencies over critical air quality and other environmental and natural resource issues affecting numerous industries
- He also routinely advises clients on a wide range of environmental issues arising during transactional due diligence
- Eric has represented oil and natural gas operators, pipeline companies, mining clients, defense contractors, steel manufacturers, engine and other mobile source manufacturers, and industry trade associations on numerous issues under the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, National Environmental Policy Act, CERCLA and their state equivalents
- He has been at the forefront of emerging federal and state methane and climate change regulatory efforts affecting the oil and natural gas sector
- Eric is frequently called upon to represent companies in high-stakes federal and state policy and regulatory matters before the Environmental Protection Agency and the Bureau of Land Management as well as state environmental agencies and oil and gas conservation commissions across the Rocky Mountain West
- Prior to Brownstein, Eric practiced in Denver and in Washington, D.C., where he advised energy, manufacturing and industrial clients
Practice Areas Explained
Eric Waeckerlin's Areas of Legal Practice
Each practice area below reflects the types of cases Eric Waeckerlin handles, with a practical overview of what that area of law involves and how it may apply to your situation in Denver.
Civil Litigation in Denver
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Eric Waeckerlin is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Colorado →
Environmental Law in Denver
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
Eric Waeckerlin is one of 55,977 environmental attorneys indexed nationally. Browse environmental attorneys in Colorado →
Jurisdictional Context
Why Local Counsel Matters in Denver
Practicing law in Colorado. Legal matters in Colorado are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Denver are typically filed in the local municipal court or the appropriate Colorado state district court, depending on subject matter and amount in controversy. An attorney licensed in Colorado brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Colorado courts without local counsel or pro hac vice admission.
Denver Courts and Legal Process
Choosing a Denver-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Colorado attorneys? Browse all attorneys in Denver or all attorneys in Colorado.
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Common Questions About Eric Waeckerlin
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Professional Profile
Why Clients in Denver Choose Eric Waeckerlin
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Eric Waeckerlin's practice in the field of litigation and environmental.
Multi-State Bar Admission
Licensed in District of Columbia, District of Columbia Bar, Wyoming, Wyoming State Bar, and Colorado, Colorado Bar Association, Eric Waeckerlin can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering litigation and environmental, Eric Waeckerlin can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Denver
A Denver-based practice means Eric Waeckerlin attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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Eric Waeckerlin's Practice Areas & Specializations
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