A 20-year-old Montgomery County man connected to a series of burglaries in the Gaithersburg and Germantown areas last year pleaded guilty Wednesday in three cases, halting what was set to be a trio of trials against him. Marcus Antonio Lee acknowledged in court that shortly before 2 a.m. on June 20, he broke into an occupied home on Hidden Field Drive in Gaithersburg, where he and two others took a purse, two wallets, an iPhone, about $600 in cash and keys to a Toyota Camry. The three drove off in the Camry, prosecutor Stephen Chaikin said in court. Lee pleaded guilty to first-degree burglary in the case. The men "were quiet as a cat as they came in the home and stole things," Chaikin said. Lee also pleaded guilty to a theft scheme involving two other burglaries from the night before. Taken in those incidents, according to charges against Lee, were video games, credit cards, a laptop computer, a Honda Civic and a Buick Enclave. All three vehicles - the Enclave, Civic and Camry - were found and returned to their owners. Travis Forbes earlier pleaded guilty to conspiracy to commit theft in the case, according to prosecutors and court records. He is scheduled to be sentenced at the end of January. A third suspect was charged as a juvenile, according to prosecutors. In 2012, more than 20 homes were burglarized in the Germantown and Gaithersburg areas. When Lee was arrested in connection with several of the incidents, police described him as a suspect in at least some of the other cases. Lee faces seven to nine years in prison. Under Maryland rules, he could be eligible for parole within four years. Both sides got something out the plea agreement. Prosecutors secured convictions against Lee without risking a trial. Lee's first trial had begun on Monday but hadn't concluded; he had two more on tap. Attorneys indicated in court that his remaining charges would be dropped. Judge Mary Beth McCormick called the plea agreement "a good end" to the cases. Lee's attorney, Jennifer Dayton, declined comment Wednesday.