About the Office
Portland has had an elected City Auditor since 1868. As the sixth elected official in Portland’s government, the Auditor is functionally independent of City Council and accountable only to the public. The mission of the Auditor’s Office is to promote open and accountable government by providing independent and impartial reviews, access to public information, and services for City government and the public.
The Auditor’s Office has a $10 million operating budget. Fifty employees carry out their work in eight divisions. Those primarily responsible for ensuring the City is accountable are Audit Services, Code Hearings Office, Independent Police Review and the Ombudsman. The divisions responsible for ensuring the City is transparent are Archives and Records Management; Assessments, Finance and Foreclosure, and Council Clerk/Contracts. Staff in Management Services oversee City elections and the lobbyist registration program in addition to providing support to all divisions in the Auditor’s Office.
Mary Hull Caballero is the elected Auditor for the City of Portland, taking office in January 2015. She previously worked as a performance auditor at Metro Regional Government in Portland and the Oregon Department of Transportation. Prior to entering the auditing field, Mary co-founded and managed a public policy leadership development organization and was a newspaper reporter. She holds a Master's Degree in Public Policy and Management from Carnegie Mellon University. She received her undergraduate degree in Communication from Lewis and Clark College. Mary is a Certified Internal Auditor and a Certified Government Auditing Professional.
Toni Anderson was first introduced to the City of Portland when hired for a summer work position through the CETA training program. This led to being hired in 1976 to work in the neighborhood office for a volunteer board of her beloved North Portland. The two-person office worked out of the senior center and had its own mascot Sammy an orange tabby cat. Toni later worked for Bonneville Power but found her way back to the City in 1986 in the Auditor’s Office, where she worked her way up through the ranks to Council /Contracts Supervisor. If Toni could change one thing it would be to have an office cat or dog.
Diana Banning manages the Archives and Records Management Division and has served as the City Archivist since 1997. Prior to her time with the City, she was the County Archivist for King County, Washington. She has a Master of Library Science degree from the University of Washington and is certified through the Academy of Certified Archivists.
Sarah Landis has been the Chief Deputy City Auditor since 2010. Previously, Sarah was a Principal Management Auditor and Deputy County Auditor for the Multnomah County Auditor’s Office. Her background prior to becoming an auditor was in education research and policy. She holds a Bachelor’s degree and a Master of Public Administration degree from The Evergreen State College. Sarah serves as Chief of Staff to the City Auditor, providing policy and operational support and acting as a liaison with Council Offices and Bureau Directors. She manages the Auditor’s Office business operations, human resources, and budget functions. She also supervises four divisions: Council Clerk/Contracts; Archives and Records Management; Assessments, Finance and Foreclosures; and Management Services, which includes the Elections and Lobbyist programs.
Melvin Oden-Orr has been the Hearings Officer for the City of Portland since July 2016. Mr. Oden-Orr earned his Bachelor of Arts degree in political science from the University of California at Los Angeles and law degree from the University of Illinois College of Law, where he was a recipient of the esteemed Rickert Award for public service. Prior to joining the Auditor’s Office, Mr. Oden-Orr practiced law for 20 years focusing on business, real estate and government law. He has also served on a variety of state and local boards and commissions, as well as nonprofit and for-profit boards of directors.
Dan Schmidt is a Senior Financial Analyst who supervises the Assessments and Finance functions of the Assessment, Finance and Foreclosure Division. After college Dan held various jobs with Multnomah County from elections to property assessment and taxation, and even worked as a workers compensation private investigator. Dan started his career with the city in 1987 in the accounting division of the Office of Management and Finance prior to taking the big leap to the Auditor’s office in 1990 to be the new senior accountant in what was then known as the Assessments & Liens Division. Dan’s responsibilities include budgeting and finance issues, administration of the City’s lien docket, debt financing, and coordination of special assessment bond sales. Dan holds a Bachelor’s degree in Business Administration with an emphasis in Accounting from Portland State University.
Constantin Severe is the director of Independent Police Review. He was born in Brooklyn, New York, and is the son of Haitian immigrants. He graduated from Andrews University in Berrien Springs, Michigan, with a bachelor’s degree in Political Economy. Constantin received his Juris Doctor from Vanderbilt University Law School in 2002. Prior to working for the City, he was a criminal defense attorney in the major felonies unit at the Metropolitan Public Defender’s office in Portland. He joined the Auditor’s Office in 2008 and became Director in June 2013. Constantin is an avid cyclist and music fan. His dream concert would be Ted Leo opening for a double bill of The Clash and The Jam.
Margie Sollinger has served as City Ombudsman since 2012. Before joining the Auditor’s Office, she was a Visiting Associate Professor at Georgetown University Law Center’s Institute for Public Representation, where she practiced environmental, administrative and open government law. Prior to that, Margie clerked on the Maine Supreme Judicial Court and was a housing attorney at Bread for the City, a non-profit social and legal services organization in the District of Columbia. Margie received her undergraduate degree in biology and environmental studies from Carleton College and her law degree from the University of Minnesota Law School.
- We're hiring a Senior Staff Attorney
- Archivists tackle white supremacy, other issues, at national conference in Portland
- Our peers approve!
- Changes to DOJ Settlement Agreement coming Aug. 3
- Mayor’s proclamation sets independence Charter changes in motion
- Council to consider changes to police oversight case-handling process
- Professional association says Portland audit among the best in 2016
- Audit recommendations resonate in wake of Uber news
- Trump Campaign pays Police Bureau’s security bill
- Input sought for police accountability changes
- Have you requested an ADA accommodation from the City? We'd like to hear from you.
- New report outlines trends in Portland’s police accountability system
- We're hiring an analyst for Independent Police Review
- Council votes today to prioritize protecting consumers' payment data
- Council protects millions by tightening grant requirements
- Lobbying reform proposal adopted by Council
- Mayor’s ignorance gets the better of him
- Auditor apologizes to the Citizen Review Committee
- Call for talented performance auditors
- Changes on deck for lobbyists, elected officials, and high-ranking employees
- Applications for Hearings Officer accepted March 28-April 8
- The Mayor's surprising question
- Have an idea for an audit?
- Meet our new colleagues
- Welcome to our new web page!
City of Portland Code of Ethics Explanations and Examples for Elected Officials, City Employees, Appointees to Boards and Commissions, and City Volunteers
Contact information for the City Auditor and Divisions of the Auditor's Office
Auditor's Office Divisions
Signed by the City Auditor February 7, 2017
Site Map of the Auditor's Office pages