The 48-year-old Avery is a realtor. The 61-year-old Knowles guided his daughter to superstardom with the group Destiny's Child and later in her solo career; she released her father as her manager in 2011.
Knowles, head of Music World Entertainment, still manages several gospel acts including Grammy-winner Le'Andria Johnson.
Knowles and Beyonce's mother, Tina, divorced in 2011 after 31 years of marriage and two children — Beyonce and her sister, fellow singer Solange.
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