2 Family convert into 3 Family - Everett MA

[Sean Bibeau]

In need of some advice and guidance! I purchased my first two family in Everett in a business zone. Unit 1 is 1200 sq ft and unit 2 is 800 sq ft. I have a unfinished  basement that I would like to add square footage. My plan is to take away 400 square feet from unit 1 then add an additional 400 square feet downstairs - making it three units at 800 square feet. Top unit will has 1 bed / 1 bath + office, then the two bottom units will be 1 bed / 1 bath with leaving common area in the basement with laundry. Both bedroom and bathroom in the basement will have a window (i don’t know the codes for this - but they are pretty large). To do this, I will need to move existing heating units and washer/dryer in the basement to make it work. 

Again, this is a first! I don’t know what I’m looking at for permit costs, converting costs, moving heating unit pricing, etc etc! If anyone has any advice, connections, suggestions, all the above - I would love to hear it all! 

Thank you so much!
Sean