Just looked this up myself a week ago because I finally caved and bought the first one. It's a straightforward series, luckily. Start with 'Saving Meghan', then 'Bone Dust White', 'Twisted Truth', 'Her Last Lie', and 'The Seventh Victim'. There's also a sixth book, 'The Dead Girl's Secret', but I haven't gotten to that one yet. The order is super important because while each book is a separate case, Morgan's personal life builds on itself—her relationship with Lance, her kids, her dad's situation. You'd be confused jumping in at, say, book three because you'd miss how her partnership with Lance evolves from strictly professional to something way more complicated. Honestly, reading them in order is the only way to get the full effect of her character arc, going from a prosecutor to a defense attorney handling these intensely personal, local crimes. I blitzed through the first three in a weekend and was seriously hooked on the small-town New York atmosphere and the forensics details.
Some people online say you can read them as standalones, and technically you could, but why would you rob yourself of the continuity? The tension between Morgan and her ex-father-in-law, a police chief, develops book by book, and it adds this whole extra layer of conflict to the investigations. Plus, Lance's background as a former cop and now PI gets fleshed out gradually. Skipping around would make those dynamics feel flat and confusing. The publishing order is the intended order, and it works perfectly fine that way—no weird prequels or side stories to juggle. I found having the list on my phone's notes app kept me on track at the bookstore.