You can apply for Hungarian citizenship if you have been married to a Hungarian citizen for at least 10 years. If you have had at least one child together, you can apply already after 5 years of marriage. Accordingly, one of the main advantages of this procedure is that you do not need 8 years of Hungarian residency, as in the case of the regular naturalization process. Having a Hungarian permanent address is not even a requirement. However, it is definitely an advantage if you do have one, and if you live at the same address as your spouse.