The qualifications are set forth below (note the more than 50% requirement).
Qualifications.
You qualified as a real estate professional for the year if you met both of the following requirements.
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More than half of the personal services you performed in all trades or businesses during the tax year were performed in real property trades or businesses in which you materially participated.
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You performed more than 750 hours of services during the tax year in real property trades or businesses in which you materially participated.
Further, you have to materially participate as a real estate professional in your rental activities to avoid being subject to the passive activity rules.
See https://www.irs.gov/publications/p925#en_US_2021_publink1000104590
