The club has been closed since the shootings which killed 37-year-old Jody Billingsley, of Mount Lebanon; 49-year-old Elizabeth Gannon, of Green Tree; and 46-year-old Heidi Overmier, of Carnegie.
Two women wounded have filed notice that they intend to sue Sodini's estate for damages.
Sodini discussed his shooting plans in a blog published after his death, saying he couldn't form relationships with women.