Purchase Terms: Clearly outline the terms for your brother to purchase the property from you, including the timeline and price.To minimize the financial burden on your HELOC, refinance the property into a traditional mortgage as soon as possible.                                                                                           

If you’re set on a duplex with minimal rehab, an investor focused agent should have a strong network of contractors who can give you quick quotes, so you don’t wind up with any pricey surprises.

@Rick Albert, It seems that you're suggesting that the goal is to raise the rent to below market value to try and minimize the risk of vacancy. 

Simplicity: TDAs require minimal effort after initial setup, making them attractive for those seeking stress-free investment.For investors like myself, seeking both stability and growth, combining a TDA with real estate investments creates a diversified portfolio.

In the one house that I still have some existing, it's only on an overhead light circuit with no insulation around it, and I minimize the load on the circuit by using only low voltage LED lights. 

What if A brings downpayment and B will manage it and minimal rennovations are needed.

Minimal risk.

They’re a great way to generate passive income with minimal hands-on involvement.Looking forward to hearing more about your goals!

Even minimally.

I agree with @Ashish Acharya if you're interested in reinvesting the proceeds into another investment property and your goal is to minimize your tax liability a 1031 would work out well for you.