House Hacking and Tax Strategies

[Daniel Madhavapallil]

Hi! 
My family and I are about to move in to a house hack! It is a 4-Unit property where we are living in one unit and renting out the other three. We were able to get into it with a 5% down primary residence loan. I've heard we can write off or deduct 3/4 of the mortgage interest, house insurance, and repairs. We obviously bought the 4-unit property under our names and not an LLC in order to qualify for the loan. My question is how do we make sure we can take full advantage of the tax strategies to keep more money in our pockets from our current W2 incomes? Thank you!