Having seen this in my family, I suspect they looted the man before he died.
For example, the apartment in the Dominican Republic could have been signed over to the daughter before he died via a quitclaim deed, I don’t know about property rights being transferred in the Dominican Republic, but that happened in my case.
Then you put everything else in a trust, name one person as 100% beneficiary of the trust when the person dies and effectively at that point, everything Charles Rangel had is now in the hands of someone else.
And...wonder how much $$$ is in offshore accounts?
Anything in a Trust bypasses probate of a will, and is not listed as assets of the estate.