Most financially efficient way to purchase 2-4 unit owner occupied unit?

[Brent P.]

Although I did see some posts about SDIRA VS alternative accounts for straight investment properties, I didn't see anything for this.

I've found a two unit property (potential to convert basement to make three units), which I am going to make an offer on, and reside in one of the units. Because it is owner occupied I'm guessing that the information in the previous thread doesn't necessarily pertain. From a tax and investment standpoint, what's going to be the best rout?
My intention is to purchase it with FHA financing and only put 3.5% down. Hopefully that isn't a road block.

I appreciate your help.