Do I simply divide the land (with utilities installed) and sell 4 lots, or should I partner with a builder to put 4 homes on there and then sell?

Rent should ideally be a little more expensive than how you have it set because you'll have to take into account CapEx, taxes, utilities, and all the other fun stuff that comes with ownership.

I'm particularly focused on those of us utilizing the Brrrr method. 

All new mechanicals and tenant paid utilities.

If they had a verbal agreement with the last tenant,   and the last tenant gave notice or has officially abandoned per definition thereof  (you can look for things like them having cancelled their utility accounts, emptied unit of their belongings, etc)  then they can't prove anything and maybe you can use that approach.   

It utilizes a formula to calculate the return on investment by taking the property’s annual net cash flow and divide by the investment’s down payment, and is expressed as a percentage.One important detail to keep in mind is that Cash-on-Cash Return doesn’t include the property’s appreciation or any principal debt payments.

With homes values sp high right now, it's a great time to open one, and utilize all that equity.

On time payments and keep your credit cards at less than 30% utilization...but more preferably, pay them off every month.

We can help with collections and utility billing automation.

Just high credit utilization (about 30% of my max and nearly 100% of some of these cards.)