@Allen Masry Congrats that is a heck of a gift! Just a heads up, there is really no turn-key in real estate. I have purchased turnkeys over the years and have had mixed results. Long story short, the properties were far from turn-key and required that I find an out-of-state contractor and property manager to complete renovations and find new tenants. There are reputable companies out there, however, but I would shy away from any company that mentions turn-key.
Long story short, real estate is very forgiving over time and these properties cash flow well and I was able to build a great team for future deals. The returns can be superior to the stock market, but will require more patience and hands- on effort.
There are more passive ways to invest in real estate than "turn-key" real estate and achieve those types of returns, but you will need vet the operators and get educated before jumping in. My opinion is to invest in the S&P unless you are willing to spend a substantial amount of time learning the space.