Thank you for your reply.
Under MI law, there is no such law saying you are only entitled to 1/3 of the length of marriage for alimony. Unlike child support, spousal support in MI is not based on any formula or statutory tables. Spousal support is based on the needs of the spouse seeking support and the ability of the other spouse to pay.
The duration can be permanent or temporary. It is permanent in a long term marriage, as your marriage is long term, if the spouse seeking support is disabled or unable to be employed for some reason. However, if a spouse can be employed or can get training/education to become employed, then the court would award temporary support for a period of time to allow them to do so and this is on a case by case basis.
The court will look at your income earning potential and then will determine based on your potential abilities and your actual current needs the amount of your alimony payments, based of course on your spouse's ability to pay.
So the court is going to expect you to support yourself to the best of your education/ability and then they would supplement that if necessary with alimony based on what your needs are.
There is nothing in the MI law, says that it is 1/3 of the length of the marriage. Every judge uses a different means to determine how long temporary support should be and it is based on the facts of each specific case without any set formula.