However, I have a large unfinished basement I would like to convert to a 3rd unit. I

The 4-unit is 1/1s, fairly similar footprints. 

The unit is within blocks of Harvard University and a billion other universities are within a few miles.

That 2nd floor unit I would like to divided into 2 apartments.

I'd like to achieve this within 10 years. 

I'm going off the understanding that you still need to spend 500+ hours in the business to achieve material participation (please correct me if I'm wrong). 

Clearly identify what you want to achieve in real estate and use that as a guiding force throughout your journey.

Title III of the ADA requires the removal of architectural barriers in existing facilities unless it can be shown that removing the barrier is "not readily achievable."

We Normally put steel posts nearby so no one runs into them.In the third picture one unit is just in front of the picture, then a second unit is at the far end on a post.These can be set off by deep fog, rain or sleet. 

Currently, we are targeting multifamily properties of 100+ units, and have been actively engaging with various owners and brokers, submitting Letters of Intent (LOIs) and working to secure deals.While some may consider our approach bold for new investors, we are confident that, with the right team and expertise, we can succeed in achieving our objectives.I’m excited to be part of this community and look forward to learning from your collective experience.