John Ryan has practiced law in Shiawassee and Genesee Counties since 2020. He currently serves as Chief Assistant Prosecuting Attorney for Shiawassee County and as municipal attorney for five cities and townships in east-central Michigan, advising local governments on governance, compliance, ordinance enforcement, and day-to-day municipal operations. Earlier in his career, he served as an associate attorney with the McKone Law Firm, as an assistant public defender in Shiawassee County, and as judicial law clerk to the Honorable David Newblatt of Michigan's 7th Judicial Circuit, where he assisted with the grand jury proceedings arising from the Flint water crisis. A past president of the Shiawassee County Bar Association (where he also served as vice president and secretary/treasurer), John currently chairs the Shiawassee County Community Corrections Advisory Board.

A New Jersey native, John earned his bachelor's degree in political science and sociology from Rutgers University, his master's degree in political science from Syracuse University, and his law degree from Wake Forest University, where he pursued hands-on training in trial advocacy, expungement, and wrongful conviction work. He relocated to Michigan in 2019 to join his wife, Rachel, in her home state. John and Rachel live in Shiawassee County with their three children, and in their free time enjoy exploring Michigan, watching movies, and spending time with family.