I’ve been the only one using the one credit card we left open for quite a few years (groceries and the like), so that’s no problem.....and I’m only using the attorney for the legal/technical mumbo jumbo.
Living wills are almost a must. They cut the attorneys out of sharing the estate almost totally.
Otherwise they take 6 + % of the estate, or work on an hourly basis for 2-3 hundred dollads an hour.