EX-99.j.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form N-1A of our report dated December 23, 2025, relating to the financial statements and financial highlights of Nomura Diversified Income Fund (formerly Macquarie Diversified Income Fund, the “Fund”) a series of Delaware Group Adviser Funds, which are included in Form N-CSR for the year ended October 31, 2025, and to the references to our firm under the headings “Financial Highlights” in the Prospectus and “Financial Statements” in the Statement of Additional Information.

/s/ Cohen & Company, Ltd.

COHEN & COMPANY, LTD.

Philadelphia, Pennsylvania

February 26, 2026