Mary Hamilton's secret clinic (Earth-Prime)

Mary Hamilton runs a secret clinic in a dangerous section of Gotham City that appears to predominantly be inhabited by the city's lower-class citizens.

History
At some point before 2018, unbeknownst to Gotham University, Mary Hamilton used their funds to operate an illegal clinic.

Mary tried very hard to keep this clinic a secret and worked passionately at it saving lots of lives, however after the death of her own mother, Catherine Hamilton-Kane. However, she decided to dismantling it.