We give our clients a few different good options and lately our client's have been independently going with Lease Killers every time.

If you're after pure cash flow your strategy might be different. 

From automatic marketing on numerous rental sites, to the amazingly detailed background check and the user friendly platform for both the prospective tenants and myself my experience has been great.

Terms would likely look different, though. 

Different scenarios possible.

It might not make a difference to you, but your tax pro and bookkeeper will hate it. 

I am looking to understand the ROI on the investment under the two scenarios and how to correctly estimate the differences in total return between the two options, assuming the positive cash flow ($28K/year w 3% growth rate) is reinvested and compared to keeping the $260K in the stock market.

They are two very different strategies. 

I have two units in two different buildings.

Fortunately we had the financial position to be able to "leave them at the alter" and go a different direction, however most consumers may not be as fortunate or prepared.