Finally sat down and counted them all because I was trying to figure out what I missed. Rhys Bowen's Molly Murphy series has a total of seventeen novels. The first one is 'Murphy's Law', which came out back in 2001, and the last is 'The Last Mrs. Summers', published in 2021. She wraps up Molly's story in that one, so it's a complete set.
I read them all during the pandemic, honestly. The order gets a bit tricky because some omnibus editions combine books, but the core sequence is those seventeen. My local library had them all, but I ended up buying the last few because I couldn't wait. The historical detail in New York City is what kept me going, even when the mysteries got a little predictable.