Quote: "The flat, is this just like an apartment or is it something your mother owned?"
Yes a flat is similar to an apartment, she owned it, I lived in it.
My sister said when my mother first died, and without knowing about there not being a will, that its right I should keep the flat, but, you never know how they might change their mind once they know legally they are allowed a stake, when her farther died (we have same mother, different fathers) she inherited 50k GBP. She quit her job and two years later had spent the lot. So its a cause of concern. Mum not leaving a will makes things very difficult, if you have to fight a sibling it means you may have to bring things up (some legal) that should be left, it can get very nasty, and you can find yourself having to legally make decisions you may not of liked to do to defend yourself. Of course the deceased dont have that to worry about.
Its amazing how things come up in light of a death, you see people how they really are, I knew my mums partner was an awful man, but I didn't know how low, I couldn't grieve because he kept phoning me, which I believe was to enjoy hearing my upset while faking concern, Id also written mum a letter to put in her coffin, and he went down to the undertakers multiple times searching the coffin mum was lay in, the undertaker had to ban him and my letter had to be secretly given to the undertaker to put into mums hand as he sealed it. He tried so many cons to get it, imagine that, you want to steal the farewell letter from the son for his dead mother.
This is what your dealing with in life, you see the good people and the bad people, testing situations really show people in their true light.