Most people believe that Islamic and Secular laws are completely different and contradict on all the things related to estate planning, but this is not true. Even though Islamic law is centuries old, many fundamentals align with Legal laws that no one can deny.
Both laws uphold that inheritance cannot be distributed until the testator's or grantor's death is ascertained.
Both laws uphold the rights of inheritors, including Spouse and Children.
Both laws agree that the inheritance goes to the secondary inheritors, including siblings if neither Spouse nor children survive. The only difference in Islamic law is that the parents inherit as primary inheritors alongside Spouses and Children.
Both laws agree that you must have estate plans, including Last Wills or Trusts, before the inheritance is distributed.
Both laws agree that you can contribute to the testamentary bequest. The only difference in Islamic law is that you can give away not exceeding one-third as a testamentary bequest.
Both laws agree that all the administration or other expenses are paid before the inheritance is distributed.
Both laws agree that the Last Will can be changed anytime until death or mental incapacity, but it becomes irrevocable after death.
Both laws agree that the Executors, Trustees, and Witnesses are required to be part of creating Last Wills or Trust.
Both laws agree that you can give away any amount of lifetime gifts to your family members. The only difference in Islamic law is you must treat all children equally in lifetime gifts.
Both laws uphold the rights of creditors. Debts must be paid off before inheritance distribution under both laws.