EXHIBIT 23.3 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM’S CONSENT We consent to the incorporation by reference in this Registration Statement of Lilis Energy, Inc. on Form S-3 of our report dated March 3, 2017, with respect to our audit of the consolidated financial statements of Lilis Energy, Inc. and Subsidiaries as of December 31, 2016 and for the year ended December 31, 2016 appearing in the Annual Report on Form 10-K of Lilis Energy, Inc. for the year ended December 31, 2017. We were dismissed as auditors on April 13, 2017 and, accordingly, we have not performed any audit or review procedures with respect to any financial statements appearing in such Prospectus for the periods after the date of our dismissal. We also consent to the reference to our firm under the heading “Experts” in the Prospectus, which is part of this Registration Statement. /s/ Marcum LLP Marcum LLP New York, NY December 7, 2018