Seller financing rarely has access to the credit system.

Upgrades include a fully remodeled kitchen, renovated bathrooms, new durable flooring, contemporary fixtures, and efficient heating and cooling systems.

You know the model and have systems so tapping into your equity is a smart move.

They are somewhat unique to Wichita & may throw off your numbers for those new duplexes.

What's unique about my property is that it has an Arcade Room with Pacman and streetfighter arcade machines along with a popcorn machine.  

Your first hire is unlikely to work out though, was you won't have a good hiring system in place. - So, recommend having that first hire document the crap out of what you want them to do.

But, for instance, I sent them a notice of rent increase effective February 1 and needed them to confirm that they have accepted the new payment terms through our electronic payment system, and even after repeated notices, they are not responding.

There are easy to use systems that will help you do this, @Angelo Llamas.

Once you feel you've built a strong team with your first property and have solid systems in place, I would then start buying more aggressively and taking on bigger projects.I suggest reading this BP article on the core 4.https://www.biggerpockets.com/blog/core-four-real-estate-team

A third party company that integrates with our system.