I did not know that you could do TOD for real estate, but in many states, you can still do a handwritten or holographic will. See
https://en.wikipedia.org/wiki/Holographic_will and verify the requirements for your state.
"The following states recognize holographic wills made within the state, though witnessing requirements vary: Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Idaho, Kentucky, Louisiana, Maine, Michigan, Mississippi, Montana, Nebraska, Nevada, New Jersey, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Virginia, West Virginia, and Wyoming."