Own house with sister, how do we turn this into a profit rental?

[Carven Boursiquot]

My sister and I inherited a blessing at a high cost.

Our parents both passed away and we inherited their two family home in Somerville, MA.

My sister and I currently live together in the 2nd unit which has 4 rooms 2 full bathrooms.

We both single working adults, so since it is too large for the both of us we have decided to downgrade. 

We want to rent the 2nd unit and move into the 1st unit which is a a two bedroom 1 full bathroom.

We are currently doing some renovations to the 1st unit to make it polished for us to live in comfortably.

Eventually, we both want to go our separate ways purchasing our own second homes and making our shared inherited property entirely a rental to help pay for our own ventures.

We are both first time homeowners and learning as we go and happy to have stumbled upon this site.

Although we paid off the mortgage of the home, it needs some renovations to get it up to date and fresh looking to attract renters.

We recently updated the heating systems to high efficiency tankless combination units.

However, that was a huge financial investment on our part and are looking to keep our spending down to what is essential, but will help get the house great looking for renters.

Any advice on how to maximize our rental profits in this kind of scenario?

Stats on our home:

Location: Somerville, MA in Union Square

Type: Two multifamily home

Total bedrooms: 6

Total bathrooms: 4

Basement: Partially finished

Any feedback would be awesome.. Thanks!