How is the inheritance of a deceased person divided who left behind a father, a mother, a wife, six full brothers, and five full sisters, and who had debts, and did not leave cash but rather land and a building?

Debts must be paid before the inheritance is divided, because debt takes precedence over the heirs' right. After the debts are paid, the remainder is divided according to Islamic law. If the heirs are the mother, the wife, and the father, then the mother receives one-sixth due to the presence of a group of siblings, and the wife receives one-quarter due to the absence of a direct descendant heir. The remainder goes to the father by ta’sib (residuary heirship). Siblings do not inherit in the presence of the father. The inheritance (the building and the land) is to be divided into twelve shares: three shares for the wife, two shares for the mother, and seven shares for the father.