Right now, you have a property with a great equity position, solid cash flow, and cheap debt (interest rate is low). 

A grand negative cash flow is not the issue.

The monthly payments are great, but the issue I am running into is what to do with idle cash.

Without any cash it is unlikely unless you can find a 100% seller financed deal (they do exist, I just did one a few months ago).

How did you achieve this type of cash flow?

Unless there is an emergency situation, take a lot of photos and call your insurance agent before doing any repairs.

It would seem having a set of plans would be very important for many reasons, like emergency plumbing or electrical, etc."

I also diversify into alternative real estate, like self-storage, to stay ahead of emerging trends.I’ve learned valuable lessons over the years, particularly the importance of clear communication and aligning expectations in partnerships.

Are you looking for cash flow/appreciation/a little of both?

My piece of advice would be to research emerging neighborhoods and focus on areas with strong job growth and infrastructure development.