In some markets you could do 250k pre tax off 1 flip, others will require a higher volume of flips.

This will break down their annual tax liability. 

To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

I am just struggling to figure out how I would afford the monthly interest expenses as construction on this type of project would take a ton of time and money.The building will be luxury student apartments which on my rough calculations can have realistically 60-65 apartments or 180-195 beds.

Together with the other two, the value of the three will be ~$2.3M.  

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

Look at Listed properties, open houses, for sale by owner (FSBO), wholesalers deals, any on site auctions you can find, and look at as many deals other investors own that they are willing to show you. 

If you search BP for SEC 8 you will find hundreds of thousands of posts.

After all units are rented, it will bring in 3600 a month gross income.

So if you are thinking of diversifying into corporate, do not think this will happen overnight.