Although you bought a house, your father's registered permanent residence is still in your hometown. So the best way is to find a unit that can solve your Beijing hukou, and then transfer the real estate from your father's name to your own name after becoming a full member, and then transfer your hukou from the collective account of the unit to your real estate office. In this way, you are completely a Beijinger with your own account, which is much more convenient than those collective accounts. Your spouse in different places can become a Beijing hukou, and your descendants are also Beijing hukou.