Investor Presentaiton

SUN'S TRACK RECORD OF GROWTH Operating efficiencies support strong same property NOI results ■ Same property operating expense growth is now projected to be 5.2% - 5.4% in 2023, despite 80% increase in insurance expense for Sun's MH/RV same property portfolio Lower than original expectations of 7.2 - 7.9%, given diligent expense management at the property level 2023E Same Property Operating Expenses MH, RV and Marina combined Legal, local taxes & insurance SUN SUN COMMUNITIES, INC. 10% Other 12% Utilities 12% Payroll & benefits 34% Supplies & repair 13% Real estate taxes 19% MAJESTIC OAKS - ZEPHYRHILLS, FL SAFE HARBOR PIER 77 - BRADENTON, FL Source: Company information. Refer to Sun Communities, Inc. Form 10-Q and Supplemental for the quarter ended September 30, 2023, as well as Press Releases and SEC Filings after September 30, 2023, for additional information. Refer to information regarding non-GAAP financial measures in the attached Appendix. Note: With respect to guidance, estimates and forecasted information, see "Cautionary Statement Regarding Guidance" on page 2 of this presentation. 16

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