Meet Our Team

Robert L. Siegfried, Jr., CPA – CEO & Founder

In 1988, Rob had a dream to start his own CPA firm that would transform the Accounting Industry. Today, Siegfried Advisory provides unique Leadership, Financial and Tax Advisory that enables our clients to become better leaders and exponentially improve their lives.

William H. Schieffer, CPA – President

Bill joined Siegfried Advisory in 1991. As President, he oversees the firm’s financial, leadership and tax services. He is also a member of The Siegfried Group’s Executive Team. Prior to joining Siegfried, Bill was the Director of Tax Services with a local CPA firm. He also worked for Deloitte Haskins & Sells.

302-472-6122
wschieffer@siegfriedgroup.com

Jeffrey W. Mitchell, Jr., CPA, MT – Senior Vice President

Jeff is the Senior Vice President of Siegfried Advisory and has worked with the Firm for over 13 years. He oversees the firm by focusing on fulfilling client service commitments and facilitating business growth. Previously, Jeff held the position of Managing Director of the Northern California Market and was a Partner at ParenteBeard.

302-472-6131
jmitchell@siegfriedgroup.com

Alison Quinn, CPA, MST – Senior Tax Manager

Alison joined Siegfried Advisory in 2016 as a Senior Tax Manager. She assists clients with understanding the tax consequences of important financial decisions so that they can make educated choices. She also specializes in providing tax planning and
compliance services for individuals, businesses, and trusts. Prior to joining the Firm, Alison served as Tax Director at Wilmington Family Office, Inc.

302-472-6129
aquinn@siegfriedgroup.com

Steve Hutchison, CPA, CVA – Senior Manager

Steve joined Siegfried Advisory in 2013 as a Manager. He provides accounting, forecasting advisory for small to mid-size companies with a focus on cash flow and operational effectiveness. Most recently Steve served as the Assistant Controller for The Siegfried Group. Steve also served as an accountant performing audits, reviews and compilations with Horty & Horty.

302-472-6106
shutchison@siegfriedgroup.com

Jeffrey Osberg, CPA – Senior Manager

Jeff joined Siegfried Advisory in 2014 as a Manager. He provides advisory to small to mid-size companies, focusing on assisting closely-held, entrepreneurial businesses, prepare and navigate through accounting and financial challenges to help business owners continue the growth of their organization. Prior to joining Siegfried, Jeff managed the audit practice at Cetrulo & Morgan Group, LLC.

215-606-0155
josberg@siegfriedgroup.com

Frank Marinelli, CPA, PMP – Senior Manager

Frank joined Siegfried Advisory in 2018 as a Senior Manager.  Most recently, he was an Operations Support Manager at Asplundh Construction Corp. After graduating from Saint Joseph’s University with a Bachelor of Science in accounting, Frank began his career at KPMG.

215-606-0098
FMarinelli@siegfriedgroup.com

Darnell Rose – Manager

Darnell joined Siegfried Advisory in 2016 as a Manager. He provides advisory to small to mid-size companies with a focus on financial statement modeling, reporting and analysis. Previously Darnell worked for The Siegfried Group and he also spent time as a Financial Reporting Consolidations Manager for Citigroup’s Delaware based holding companies.

215-704-1025
drose@siegfriedgroup.com

Kristina Zern – Tax Manager

Kristina joined Siegfried Advisory in 2013 as a Senior Associate. Her role involves tax preparation, tax planning and accounting software assistance for individuals and business clients. Prior to her role at Siegfried, she was a Senior Tax Associate at BDO USA, LLP.

302-472-6164
kzern@siegfriedgroup.com

DeAnna Orwig, CPA, MIB – Tax Manager

DeAnna joined Siegfried Advisory in 2016 as a Senior Associate. She has over five years of tax experience with business and individual tax preparation, research, planning and consulting. DeAnna joins the Firm from PwC and was previously a Senior Associate with RSM.

215-606-1728
dorwig@siegfriedgroup.com

Scott Dentremont, CPA, MBA – Senior Associate

Scott joined Siegfried Advisory in 2016 as a Senior Associate. He provides financial advisory services for small to mid-size companies with a focus on helping business owners grow their organizations through detailed analysis of cash flow projections and financial statement reporting. Prior to joining the Firm, Scott was a Senior Associate at Horty & Horty.

215-294-9962
sdentremont@siegfriedgroup.com

Shaun Menkhaus, CPA, MT – Senior Tax Associate

Shaun joined Siegfried Advisory in 2017 as a Senior Tax Associate. His role involves tax preparation, tax planning and accounting assistance. He was previously a Senior Associate at PwC where he specialized in tax planning and compliance for small to mid-sized companies as well as high-net-worth individuals.

215-606-1727
smenkhaus@siegfriedgroup.com

Brieann Capecci – Senior Tax Associate

Brieann joined Siegfried in 2017 as a Senior Tax Associate. Most recently, she was in an industry role with a staffing and technology company and before that, she was a Tax Associate for Marcum, LLP. She earned her bachelor’s degree in accounting from Holy Family University and her master’s degree in management from La Salle University.

215-606-0097
BCapecci@siegfriedgroup.com

Stephanie Boyer, EA – Tax Associate

Stephanie joined Siegfried Advisory in 2003 and currently serves as a Tax Associate. With over 13 years with the Firm, her experience includes tax preparation and analysis for corporations, partnerships, and individuals as well as accounting assistance and compliance reporting for small to mid-size firms.

302-472-6135
sboyer@siegfriedgroup.com

Erin Schieffer, MT – Experienced Tax Associate

Erin joined Siegfried Advisory in 2014 and currently serves as an Experienced Tax Associate. Her role involves tax preparation, tax planning, accounting assistance, and compliance reporting. She earned her bachelor’s and her master’s degrees in accounting from Goldey-Beacom College.

302-472-6176
eschieffer@siegfriedgroup.com

Angela Wade – Senior Executive Assistant

Angela joined Siegfried Advisory in 2015 and currently serves as a Senior Executive Assistant. She helps the team manage the client service deliverables, along with office management tasks.  Prior to her role at Siegfried, Angela was a Paraprofessional at Baker Tilly Virchow Krause, LLP where she assisted with tax preparation, tax planning and administrative needs.

302-472-6170
awade@siegfriedgroup.com