Since she died in early December 2014, I have no doubt she still had help in her "house." So, I don't know what the question is with that point.
I also imagine it was the same dealing with most any royal widow's possessions. Many objects are personal gifts or perhaps some state gifts, but I would imagine Fabiola took care during the 20 years post Baudouin to work in getting the state-owned items back under the care of the government folks who handle that. She and Baudouin lived a fairly spartan life together. I find it difficult to believe Fabiola would surround herself with objects that weren't her own, after his death.
I have a feeling that after Philippe's scandal with the furniture, and after every single Laurent incident, she made sure that everything was above board in terms of her possessions and acceptance of gifts. She knew very well that the family was under constant scrutiny, and she knew that the public wouldn't tolerate greedy behavior. Fabiola seemed too smart for negligent behavior.