First Time Home Buyer Status

My husband and I have been separated for 7 months, and I am in the process of buying a house. We plan to file for divorce once we’ve been separated for a year. This will be a first time home purchase for me, and he has never bought a house before. If we have a separation agreement and free trader agreement, does that mean:

a) he’d have no legal rights (or responsibilities) for the house/mortgage, and
b) that he wouldn’t be precluded from first time home buyer advantages (tax and otherwise) if he buys a house for himself in the future?

Thank you!

a) So long as there is a validly executed Free Trader agreement, he would have no rights in the property.
b) No, he should still be entitled to take advantage of any first time home buyer incentives when he buys his first home.