About Heather Sonnenberg
CO-CHAIR, FINANCE, RESTRUCTURING, AND BANKRUPTCY PRACTICE GROUP
Heather Sonnenberg concentrates her practice in commercial finance, with a particular focus on asset-based and cash-flow financing for various industry sectors, including manufacturing, healthcare, and other service industries. She serves a wide range of clients, including banks, commercial finance companies, mezzanine lenders, and other institutional lenders, along with private equity firms, hedge funds, and publicly and privately held corporations in the following areas:
- Commercial financing
- Asset-based financing
- Cash-flow financing
- Secured transactions
- Healthcare financing
- Real estate financing
- Mortgage warehouse financing
Chambers USA ranks Heather as a leader in the field of banking and finance law. Chambers notes “she is fantastic at working through matters”; “Heather is a very solid attorney and an incredibly talented deal maker”; “a strong negotiator and a good advocate”; and “Heather is thorough and someone you can always count on to best represent your interests.”
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
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Experience
- An agent, in connection with a $90 million syndicated credit facility established for one of the world’s largest producers of trail mixes and a leading provider of snack nuts, dried fruits and other high growth, healthy snack products.
- Commercial finance subsidiary of an investment bank, as the administrative agent and lead lender, in connection with a revolving credit and mortgage term loan facility to finance the acquisition of a senior housing facility.
- Commercial finance subsidiary of an investment bank, as the administrative agent and lead lender, in connection with a revolving credit and mortgage term loan facility to finance the acquisition of skilled-nursing facilities, assisted-living facilities and apartment complexes located in the southeastern United States.
- An equity sponsor, in connection with a term loan and revolving credit facility to finance the acquisition of a direct-marketing company and ongoing working capital needs.
- An equity sponsor, in connection with a senior and mezzanine credit facility to finance the acquisition of a computer-accessory design and manufacturing company.
- Agent and lender, in connection with a $13 million revolving credit and term loan facility provided to a designer and developer of services technology based solutions for pharmacy facilities, including automated medication dispensing.
- Agent and lender, in various revolving credit facilities to affiliated rehabilitation and health care facilities offering short-term, long-term, respite, dementia, hospice, and palliative care in connection with opco/propco HUD transactions.
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
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News & Views
Events & Webinars / Speaking Engagement
Deep Dive into the Bankruptcy-Related Provisions of Intercreditor AgreementsOctober 7, 2026
Cases & Deals / Deal
Blank Rome Represents Prospect Capital Corporation in Sale of Valley Electric to MYR GroupJuly 9, 2026
Honors & Awards / Ranking
Blank Rome Attorneys and Practices Highly Ranked in The Legal 500 United States 2026June 30, 2026
Honors & Awards / Ranking
Chambers USA 2026 Recognizes Blank Rome Attorneys and PracticesJune 4, 2026
Events & Webinars / Speaking Engagement
Top 10 Mistakes in Negotiating an IntercreditorOctober 23, 2025
Cases & Deals / Deal
Blank Rome Represents Prospect Capital Corporation in Acquisition of QC HoldingsAugust 19, 2025
Honors & Awards / Ranking
Blank Rome Attorneys and Practices Highly Ranked in The Legal 500 United States 2025June 11, 2025
Honors & Awards / Ranking
Chambers USA 2025 Recognizes Blank Rome Attorneys and PracticesJune 5, 2025
Honors & Awards / Ranking
Chambers USA 2024 Recognizes Blank Rome Attorneys and PracticesJune 6, 2024
Book / Publications
Commercial Lending Law: A Jurisdiction-by-Jurisdiction Guide to U.S. and Canadian Law, Third EditionNovember 2023
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
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Recognitions
- 2022–2026, Banking & Finance, Pennsylvania, listed in Chambers USA
- 2025–2026, listed in The Legal 500 United States
- 2023, “Top Woman in Asset-Based Lending,” listed by ABF Journal
- 2019, “Top Woman in Commercial Finance,” by The Secured Lender
- 2016, “40 under 40,” by the Commercial Finance Association
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
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Memberships
- American College of Commercial Finance Lawyers
- American Bar Association
Professional Activities
Heather is a fellow of the American College of Commercial Finance Lawyers. She also serves as chair of the Commercial Finance Committee of the Business Law Section of the American Bar Association and sits on the board of directors for Compass.
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
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Bar Admissions
- Pennsylvania
- New Jersey
Education
- Rider University, BA, summa cum laude
- Temple University Beasley School of Law, JD, magna cum laude
A description of the standard or methodology on which the accolades are based can be found here.
No aspect of this advertisement has been approved by the Supreme Court of New Jersey.