Jenna Ellis, Donald Trump’s 2020 campaign attorney charged in Arizona as part of the fake electors scheme, has agreed to cooperate with prosecutors in exchange for getting her charges dismissed.

Arizona’s attorney general, Kris Mayes, announced the deal on Monday, sharing a legal agreement that shows Ellis agreed to sit for interviews and turn over documents related to the scheme. The agreement also calls on Ellis to “testify completely and truthfully at any time and any place requested by the Arizona attorney general’s office”.

In exchange, Ellis will avoid potential jail time for her role in the scheme.

“This agreement represents a significant step forward in our case,” Mayes said in a statement. “I am grateful to Ms Ellis for her cooperation with our investigation and prosecution. Her insights are invaluable and will greatly aid the state in proving its case in court.”

In Arizona, 18 people were charged – the 11 people who falsely attested that Trump had won the state’s electors, and seven others from Trump’s circle who helped coordinate the scheme.

Ellis previously pleaded guilty in Georgia to one count of aiding and abetting false statements and writings in that state’s election subversion case. Her plea deal in Georgia resulted in five years’ probation, a fine and community service in exchange for cooperating with prosecutors. Her plea came quickly after two others pleaded guilty in the case, and she subsequently had her law license suspended.

Documents filed in the Arizona case cite the Georgia plea agreement, saying that it was “in the interest of justice” for the judge to accept the Arizona deal because it comes from “the same conspiracy charged in this case”.

Ellis, and the others indicted in the Arizona case, faced nine felony charges related to fraud, forgery and conspiracy. All pleaded not guilty.

Arizona is one of seven states where Trump and his allies sought to install “alternate” electors who claimed Trump won in their states. In five of the states, prosecutors have worked to bring charges against at least some of those involved.