Conceptually you want to take an approach that minimizes your need to be on site - and for that reason I would advise against BRRRR.

It’s crucial to consult a real estate attorney and tax advisor to structure the transfer in a way that minimizes tax consequences and aligns with your objectives.

You can't decide which one to choose based on the minimal information you provided.

Even minimally.

If there were any, they were minimal, meaning not much maintenance was needed.

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.

Seriously, all I can tell you is this:Showing you screenshots, and a ton of leads from my website is a direct indication of the effectiveness of what I am telling you. 

Holding Costs - My experience with owner financing is that I can buy and sell a property in a month or less since the rehab is minimal and I'm providing the financing.

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.

Our systems have caught people using SSNs from deceased people or the SSN indicates they are 2-3 decades older than their driver license birth date.