Antonio Brown's ownership "partners" with the Albany Empire say they've been frozen out by the former NFL star, and they have a message for AB ... buy us out, or we're prepared to go to court!
TMZ Sports talked to Charlotte von Schiller and her husband Steve ... who purchased a 5% stake in the organization last year before Brown came on board. Antonio now owns 95% of the franchise.
Unfortunately for the von Schillers, they say things have been absolutely awful since Antonio took over .