I recently got engaged and will need to be finding a place to live by next October 2020, but I wanted it to be a potential investment property for us as well.

There are horrific consequences if you engage in DIY possession and a court later determines that you entered illegally.

Marketing will require the reader to engage.

Soon after that, I got engaged, and moved in with my now wife, and rent out both units of the duplex for cash flow. 

Tomorrow we will engage the city to figure out what their plans for this area are.  

Michael Plaks is a great professional and I recommend investors to go to him.Regarding our "experience", we had a brief free consultation and we were not engaged to work together.

Research markets and submarkets to invest in and understand your investing criteria. https://www.biggerpockets.com/...You're also going to need to begin building a list of potential investors and creating ways to engage them and new investors. https://www.biggerpockets.com/...https://www.biggerpockets.com/...Next, you'll need to build a team.

Does anyone have any insights into how renters are engaging with rental properties in college towns?

Assuming you engaged your title company to make sure the funds were put in a 1031 intermediary, then I would look to 1031 into a multi-family that generates more cash flow than the one you sold.

Who's actively engaged in daily rental arbitrage in the Phoenix metro, primarily in the Scottsdale/Mesa/East Valley markets?