Burton did not respond to a request for comment from ABCNews.com.
"The overall goal is to have proper administration of the estate," Cohen told ABCNews.com. "We are looking for Chase and Jefferson and Judge Burton to pay back all of these outrageous attorney fees to the tune of approximately half-a-million dollars in cash. We're looking for that to be returned and we're looking for the artifacts to be returned to our control."
Cohen is also demanding a trial by jury.
"Rosa Parks was a citizen like any other and her wishes ought to be respected the same as any other person," Cohen said. "But we are talking about Rosa Parks here and the fact is, before they were confiscated, these artifacts were important educational tools used by the institute in their programming both during her life and after she died. They're basically being held hostage by the same people who are causing the shenanigans."