- J.D., University of Denver College of Law, Editor-in Chief, Transportation Law Journal
- LL.M. (Taxation), University of Denver
- M.B.A., University of Denver
- B.S., University of Colorado
- U.S. Tax Court
- National Association of Bond Lawyers (NABL) (former chair; frequent lead or contributor for Tax Law Committee guidance requests and comments to the U.S. Department of Treasury and Congress)
- American Bar Association, Tax Section
Matthias advises clients on developing effective tax solutions and delivering efficient structuring ideas relating to municipal and corporate debt. He has represented clients ranging from banks, securities dealers and governmental and corporate securities issuers to large hospital systems and other healthcare organizations, housing developers, energy and solid waste recycling companies, manufacturers and various types of section 501(c)(3) nonprofits. A particular area of focus includes economic development financings relating to special districts, business improvement districts, special benefit districts, community improvement districts and community development districts throughout the country. Matthias also counsels clients in Internal Revenue Service audits and private letter ruling and voluntary closing agreement program (VCAP) requests and serves as 501(c)(3) counsel in bond financings. Matthias serves as director on the Board of Directors of the National Association of Bond Lawyers and as the board liaison to the association's Tax Law Committee. He also serves as vice chair of the Tax-Exempt Financing Committee of the Tax Section of the American Bar Association.
Fluent in German, Matthias has also served German companies and individuals in business and litigation matters.
- "Arbitrage Rebate," "Private Activity Bond Test" and "Tax Due Diligence and Documentation," Bond Attorneys’ Workshop Conferences, National Association of Bond Lawyers (panelist and panel chair)
- "The Refunding Bond Issue" and "Reissuance," Tax and Securities Law Institute Conferences, National Association of Bond Lawyers (panel chair)
- Chair and vice-chair of The Institute conference, National Association of Bond Lawyers
- "General Tax Section," "Refundings and Reissuances," "Avoiding the Private Activity Tests" and "Private Activity Bonds," Fundamentals of Municipal Bond Law Conferences, National Association of Bond Lawyers (panelist and panel chair)
- "Understanding Proposed IRS Rules on Issue Price and the Industry Impact," CDFA, Bank of New York Mellon Development Finance Webcast Series, Council of Development Finance Agencies (speaker)
- "Financing Infrastructure: Bank Loans vs. Bonds," Colorado Municipal League Annual Seminar on Municipal Law (speaker)
- "Federal Tax and Securities Laws Post Issuance Compliance," Colorado Municipal League Annual Conference (speaker)
- "Exempt Bond Provisions in Infrastructure Bill Called Insufficient," Tax Notes, August 6, 2021 (Quoted)
- "Regulatory guidance on LIBOR transition welcomed," The Bond Buyer, October 9, 2019 (Quoted)
- "Marijuana bond issues clouded by federal status," The Bond Buyer, June 11, 2019 (Quoted)
- “Proposed Tax-Exempt Bond Changes Could Thwart Hospital Funding,” BNA’s Healthcare Daily Report, Bloomberg Law, November 8, 2017 (Quoted)
- “IRS proposes updated public notice, approval rules for PABs,” The Bond Buyer, September 28, 2017 (Quoted)
- “IRS tells public utility it can issue tax-exempt refunding bonds,” The Bond Buyer, August 15, 2017 (Quoted)
- Served as 501(c)(3) counsel to large hospital system in connection with system's issuance of new construction bonds (Kentucky)
- Served as tax counsel for the Regional Transportation Authority’s issuance of $139 million of General Obligation Bonds, Series 2018B (Chicago, Illinois).
- Provided tax advice in firm’s role as bond counsel for a large bank direct placement involving the construction of a community ice skating facility with professional hockey league use (California).
- Tax counsel to financial institution lender for structuring secondary market stripping and sale of Qualified Zone Academy Bond tax credits using custodial and trust arrangements (Nationally).
- Tax counsel for New Clean Renewable Energy Bond and Qualified Energy Conservation Bond issuances for an international airport and multiple municipalities and state agencies (Nationally).
- Tax counsel for various exempt facility financings, including solid waste disposal facilities, two-county gas facilities, pollution control facilities (under transition rules), manufacturing facilities and first-time farmers.
- Tax counsel for bond issuances benefitting some of the largest health care facilities in the State of Colorado.
- Disclosure counsel to international airport (Colorado).