This is not a good law.
I know that you are just talking about it so you could help those that really need it. The flaw in your proposition is that most of the poor people are not even trying to make a way so that they could be successful one day. If you will just give the poor the money of the rich people, don't you think that it is just unfair and people would just rely on that help?
Exactly, They won't even try to work anymore as they will know they will get money from someone who is working way harder than them.
Eventually, a major population will decide to follow this and at last, there will be no rich left
or
There will be riots as Why a person who has worked hard will give his asset to someone who is not even trying to move his ass.