The Main Issue
The main problem was the fact that Louis had not written out a clear cut will, complicating matters. If he had allocated his assets to whoever he wanted to give them to, things would have been much simpler. But that was not the case.
No Matter
It seems like Louis most likely didn’t care what happened with his money after he passed. He probably saved up the money in case he needed it one day, and didn’t think about what happened after he was gone.