Margaret A. Foster

Keith is a member of Butler Snow’s Labor and Employment Group.

Cliff Atkinson has practiced for more than 44 years in the areas of complex commercial and tort litigation in a broad spectrum of difficult cases. He, with his good friend and now retired colleague John Thal, founded the Firm in 1992 on the principle that a small, directed, hard hitting litigation firm can deliver the highest quality of personalized services to its clients. In his many years of practice, Cliff has litigated and tried cases to verdict, judgment, or other successful resolution ...

Mariposa Padilla Sivage is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Employment Law - Management, Labor Law - Management and Litigation - Construction. Mariposa Padilla, who practices law in Albuquerque, New Mexico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mariposa Padilla is held by other top lawyers in the same geographic and legal practice area.

Chris Killion’s practice focuses on oil, gas, and mineral development, including issuing drilling, division order, and acquisition title opinions for oil and gas companies for properties in New Mexico and Texas, as well as representing those companies before regulatory bodies. Chris helps clients comply with state and federal regulations related to mineral development and represents clients in transactions involving purchase and sale of mineral rights. An Alabama native, Chris is licens...

Theresa Hacsi is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs. Theresa, who practices law in Albuquerque, New Mexico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Theresa is held by other top lawyers in the same geographic and legal practice area. As a teenager, Theresa watched her father struggle with insurance companies from his hospice bed. Inst...

Katherine McKinney focuses her practice in public finance and concentrates on representing issuers and underwriters in revenue bond issues, general obligation bond issues, and special assessment district bonds. In her municipal finance practice, she drafts all requisite bond documentation for issuers including municipalities, counties, universities, and school districts throughout the debt issuance process and advises clients regarding federal tax and securities law issues and state law requi...

Karen Kahn concentrates her practice in ERISA and employee benefits law. For more than thirty years she has advised clients and drafted documents for defined contribution plans including 401(k) and 403(b) plans, ESOPs, traditional defined benefit pension plans, cash balance plans, Section 125-cafeteria plans, HSAs and HRAs, welfare plans including health insurance plans, wrapper plans, severance plans, and non-qualified deferred compensation plans. Karen provides legal counsel to more than 25...

Stan Harris is a shareholder with Modrall Sperling and has twenty years of litigation experience. Stan practices in the areas of public lands, natural resources, and commercial litigation. He has advised clients at the judicial, administrative, and legislative levels on federal, state, and local issues. Stan has extensive experience in the representation of parties in their disputes involving cultural property, public lands, Indian lands, oil and gas industry, environmental infrastructure mat...

Doug Vadnais has more than 30 years of transaction and litigation experience in diverse business matters, real estate, and the protection and exercise of creditors’ rights. He has represented the entire spectrum of clients from individuals to Fortune 500 companies, and brings to each a pragmatic, practical approach to problem solving, with the aim of effecting an efficient and advantageous resolution for the client. Clients include both buyers and sellers of commercial and residential r...

Doug Baker has successfully litigated and tried a number of complicated bet-the-company and other disputes involving commercial, product liability, professional liability, insurance coverage, and tort/personal injury cases, representing local to Fortune 500 Companies. Doug has tried cases to verdict in both state and federal courts, as well as administrative proceedings and arbitrations, achieving favorable verdicts or results for his clients, both plaintiffs and defendants. Doug’s hono...