Do my siblings have a right to an apartment for which my husband and I paid the majority of its price after selling another apartment that my father had registered in my name, and will I be a partner in sin if my siblings consider their father to have been unjust?

This type of question, which involves disputes and conflicts, is best addressed through a Sharia court, or by direct consultation with a qualified judge from among the people of knowledge, in order to hear all parties and their arguments. This is based on the Prophet's (peace be upon him) saying to Ali: "O Ali, when two litigants sit before you, do not judge between them until you have heard from the other just as you have heard from the first. For if you do that, the judgment will become clear to you." And because the question contains matters that require detailed clarification, we advise referring the matter to the Sharia court or consulting the people of knowledge directly.