Lenz's character appeared in the fourth episode of the final season.
In late September 2013, Lenz landed the role of Lauren Byrd on the pilot Songbyrd for E! The show centered around Lauren, a genius songwriter who employs a small staff, including her sister, to enable and manage her eccentric, yet wildly successful process.
She initially approached producer Greg Prange in 2007 with the idea of directing but was not given the opportunity to do so until two years later.
She continued to find work steadily as an actress, and by her sophomore year in high school she landed the role of Linda Halleck in Stephen King's Thinner.In spring 2015, Lenz was cast in the Shonda Rhimes drama, The Catch for ABC playing the role of Zoe. Producer Corinne Brinkerhoff said about Lenz "We love her! She plays a witty, insightful nurse at a rehab facility." Since Lenz's exit from Guiding Light she has completed a demo of original music.On May 18, 2015, Lenz revealed she was being replaced; she wrote, "Looks like they need a different type for ZOE, so I'll be replaced," though she still encouraged fans to watch the show. Trained by the director of the Brooklyn College of Opera, Lenz plays the guitar and piano, and writes her own music.Early 2016, Lenz starred in her friend Kristin Fairweather's first short film, entitled Grace. Her first album, entitled Preincarnate, was released in October 2002.She also appeared in March 2016 in two episodes of season 3 of Agents of S. She worked under the direction of director Garry Marshall and alongside musician Carole King on a new musical adapted from the series Happy Days.She played the role of Meg, a single mother who the character Tyler begins to date.The episode, "Tyler the Pioneer" aired on May 9, 2013.She landed the role of Haley James, the quintessential girl-next-door, who is best friends with Lucas Scott, portrayed by Chad Michael Murray, and wife of Nathan Scott, portrayed by James Lafferty.During her time on One Tree Hill, Lenz was also offered the role of Belle in Beauty and the Beast when it was still in production on Broadway, but turned it down due to scheduling conflicts.In March 2013 it was confirmed that Lenz would have a recurring role on Dexter.Her character Cassie was described as "an attractive former finance executive looking for a quieter life".