Unless there is a history of STRs in the property already and you have experience with STR, you really wouldn't be able to supplement your income with that. 

This strategy can be a game-changer for building long-term wealth, as it enables you to leverage your gains without an immediate tax hit.Example: Sell a rental property for $300,000, reinvest in a new property of equal or greater value, and defer capital gains taxes indefinitely.5.

It's not quite as easy as renting out two sides of a duplex, but with the right marketing and management you could rent out the extra unit to supplement the mortgage payment. 

It enables us to keep our money working at our current rate, and it puts more money in the hands of the rehabber.

@David Woodside The 500-hour rule allows you to treat rental losses as active, enabling you to offset other income and reduce your tax bill significantly.

I'm attempting to get it zoned to enable building a duplex. 

You’ve developed a moderately fast wealth accumulation strategy that’s relatively low risk, enabling you to ride out down cycles, negative cash flows, unexpected necessary expenditures, etc.  

Innago is an excellent platform that not only enables you to market your properties but also offers a link for potential tenants to submit applications, including credit and background screenings.

And the Solo-K would enable you to borrow $50K from the retirement balance to use as you please.

Our approach enabled Carol to focus on executing the project without financial constraints.