In college towns like South Bend, features that appeal to potential landlords (like extra bedrooms or separate entrances) will boost ROI.In colder climates like Indiana, spring and early summer are often the best selling seasons.

Single, college aged or not, I wouldn't even consider paying for a place with no means to shower.

pick a market this way.a place you used to live in, or went to college in, or have family, or like to vacation in, or know really well.also: consider investing closer to where you live. 

In my mind, we've run a few scenarios - primarily airbnb, multi-family, college towns - but really not sure where or how to start.  

Someone that works in aerospace told me that there won't be that problem in San Diego county with ocean water temps less than 70 degrees? 

Eugene would be a college oriented market to explore…Would be happy to introduce you to the PNW market. 

I graduated college with a double major in finance and real estate. 

And that's even though I have a Bachelor's Degree.

@Naveen kumar Vadlamudi this thread on college rentals may be helpful:Nearing 1,000 College Tenants - Here's What I've Learned

Though I graduated from college in Tucson (Bear Down!)