Buying fire damaged properties

[Gerald Knott]

I'm looking to purchase my first property and I came across a triplex in my area that has been fire damaged in the top unit. There some potential for commercial space for one unit and the other unit is a 2 Bd 1.5bath and the fire unit has 1 bd 1 bath. This is priced at 90k and of course will need a ton of revenation including new fixtures and flooring and windows and the tip unit fire damage will need to be addressed. As a first time investor whats the best way to approach this?