Tory Lanez just dropped a fat stack of cash to help dozens of disadvantaged California families post bail for their loved ones through Unite The People Inc.

The rapper made a surprise visit to the non-profit in Long Beach to meet some of the families who will benefit from his donation. Unite The People offers legal services to folks who are cash-strapped and gives them a fair shot with the legal system.

We’re told Tory kicked in $50,000 to the cause … and the money will help 50 families pay legal fees to bail their family members out of jail.

Tory’s been a board member for Unite The People for 2 years and he says he was moved to make the donation after learning what many of the families were going through, including struggles to bring their loved ones home.

We’re told Tory and co. are helping folks with criminal and post-conviction sentences, with a focus on people who have been disproportionately sentenced due to racial or financial inequalities.