You should meet as many players in the game as possible.

-Find a market/people you want to invest with OOS.OOS would provide cash flow, debt reduction/equity build up, depreciation, etc on multiple properties and all of which would support you buying more properties. 

If I have all low interest debt and feel like I can get a higher return if money was invested, I wouldn't pay off anything, but use that money in something I can easily get it out in the event of need1/4 into a hands off, no labor investment... for me it would probably be peer to peer lending... with small amounts in multiple loans to spread the risk... returns are solid and I appreciate the service they provide1/4 into a value add multifamily... in the midwest you can find a great cash flowing property with lots of equity for this much money1/4 I would park and not touch... put it in a high yield savings account... yeah, I know, not doing much for me, but I believe in the bird in hand..... 

I read about people buying multiple properties a year/month, it seems impossible at my current pace.

Would greatly appreciate others advice on whether I should look to sell and purchase multiple different properties or hold and rent (home is a few miles from Purdue University).

@Luka MilicevicI’ve read about people using programs to call multiple numbers at once to leave a mass voice mail.

I have been running comps on so many houses in multiple zip codes.

I know, I know... there are MULTIPLE other factors that make each purchase unique, but narrow it down for me on the numbers side... is it Cash On Cash ROI?

@Ashley Hughes - I'll give you what I give my buyers I work with (as well as things I've used and other investors and agents have used to win multiple offer situations in the past) of course, they may not all apply or be right for you, but I think it's good to know you have the options!

I look at things from multiple angles.