The lender did not use a servicing company, and the pay history is being contested (which should be easy to prove)2.

You could tell them to cancel the listing and you will find someone else to list it after a month not 4 months (the market take is subjective too, all dependent on what your house has compared to others, where it is located, the size of it, and so many other factors).

Hello, I have a tenant that has made partial payments in the last 3 months and I want to begin the eviction process.

Your property manager should be supplying monthly reports and year end PnL reports that you give directly to your CPA. 

Now that is service!

Let me just lead with EXCELLENT customer service.

If you asked me to run a ton of properties, I would still be happy to do it, I may just charge a service fee at some point.

Basically/Hopefully that is watching rents hit your bank, and occasionally calling a repair service as needed. 

The original six month tenant I had extended the lease 9 times and stayed a total of 5 years, paying me about $15k over market rent annually.  

You don't need to know everything to get started; you need a foundation to build on, and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.