A few may just want to be a PML and get the agreed upon interest rate.

Yes quite a few of our 5,000 options have rate and term or purchase!

In a climate like this with high rates, probably better to use a Heloc so you keep the lower rate of your 1st lien.

The metrics I'm primarily focused on are: rent appreciation rate, property appreciation rate, economic growth rate, unemployment rate on the macro level.

Simply put, we start off with the As Repaired/Completed Value (ARV), then subtract from that number a reasonable profit, the rehab cost (scope of work), which we've gotten good at, a contingency reserve for any "unexpecteds", our cost of capital/carrying costs (interest and costs of the leverage used), and our costs/fees on the buy and sell sides of a flip.

We only needed to pay earnest money and a portion of the closing fees bring upfront investment to 12-15K.

Using a CAP rate of 7%, the $16,000 becomes= $228,000 of added value. 

Sometimes they’ve already negotiated solid group rates.

If you pay off your mortgage (which is a good interest rate), you will likely burn through that cash flow as it is more accessible, AND that money isnt working for you anymore (unless you reinvested it).  

How do you go about determining market rate?