Additionally, you want to start building your "Core 4": agent, GC, lender, and PM. 

Additionally, I’d appreciate advice on pricing.

A less then full investigation may result in one thinking that the house and or the house and tennis court lots were what was being sold.As I later found out, a newbie tax lien investor thought they were getting a great bargain by outbidding other misinformed investors and paying the back taxes, legal fees, and an additional $34,000 (overage) which the county forwarded to me.  

For payments, tools like Stripe, PayPal, or booking software like OwnerRez work well.Happy to connect if you’d like to chat more or need additional tips!

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The PMS around here are pretty terrible, I've worked with a lot of the larger ones in Cleveland and I think they just take on more properties than they can effectively handle and don't hire enough additional employees to make it work. 

In addition to rent, you can setup late fees and other fees to be collected. 

In both you are now paying taxes on an additional $1K/mo.

Additionally, I expect applicants to follow instructions in the advertisement and application, to make and keep appointments, to show up on time for appointments, dress and behave appropriately at appointments, and in general demonstrate throughout the process that they are someone that is easy and pleasant to do business with.

Your primary strategy should be to have the Contractor and all Subcontractors add you to their insurance policy as Additional Insured.