What you will find is that there are more duplexes that will attract professionals as tenants than four families: moats have been built as affordable housing in clusters and are typically 1 or 2 bedroom units.

He agreed to join in investing with me and work for me for no costs at the start of our business (all income would be going back into the business until it's financially self-sufficient)On top of that HUGE benefit seeing as contractors absolutely drain cash during a rehab, my dad told me that he will possibly help financially support me in the start of my business.

Our rentals are targeted at families or younger professionals that want close to campus/square living but not on campus/square prices.

paying recapture is the most NON talked about event on BP or in real estate.. and why when folks talk about buying for only cash flow and appreciation IE speculation or gambling those folks totally miss the point and do not have a full picture of the Lifecyle of a real estate investment.. if you have NO appreciation your recapture tax is going to eat into your IRR in a negative manner.and for a lot of folks to 1031 one little house with 20k coming out of it is hard to do.. since the house never went up.. the other thing is people that say they are buy and hold forever.. this rarely happens.. life happens life changes.. and so 7 to 10 years down the track MOST folks unless they have decided to make it their lifes work IE be a full time professional landlord.. they sell .and then that pesky recapture they never knew about or thought about bites them .. :) 

Also very interested in networking with anyone (attorneys, CPAs, agents, brokers, property managers, investors) to begin laying down some professional roots in the RE space :)

I end up amending a lot of returns due to this being done incorrectly so if you're really not sure I would recommend reaching out to a professional. 

As always, don't trust the internet, seek professional advice. https://www.hud.gov/sites/documents/SERVANIMALS_NTCFHEO2013-01.PDF

Much like "any" professional you are bound to get different answers, including out here.

Get a professionally written lease, start screening potential tenants. 

I'm a broker, not an attorney, so seek professional legal advice.