@Tom Schmoetzer
Welcome to BP! I bought my first investment property at 57. I find that life has provided me with a much fuller toolbox than those starting at a young age. They have the advantage of time on their side, but we have experience that will save on some of the mistakes and help us make smarter decisions. Maybe not smarter decisions than them, but smarter than our younger selves would have made, lol.
Is either of those 401k plans a solo? If so, you can use that money to directly invest in RE or RE related investments. From what I have found so far I like the idea of the almost totally passive investments for those within the 401k, things like notes, tax liens, etc. If you don't have a solo 401K it is a great way to go, as it allows you control of where you invest. It also allows you to put a bigger chunk in, if you have enough income, and it allows you to put it in to a Roth plan so the earnings are tax free forever once you have the plan for 5 yrs.
There are a number of RE related investments that can provide solid cash flow and good returns, and not all require being a landlord. I suggest you do lots of reading here and listening to podcasts. Find out what fits your needs and personality best.