I don’t think so, but I’m interested in seeing the evidence if you can produce any. 

The rent plus his retirement will actually produce positive cash flow.

This amounts to lost opportunity because if you had purchased RE, at the closing it can start producing return. 5) ADUs detract from the existing structure whether this is privacy, a garage, or just yard space. 6) this is related to number 1, but there are many more buyers looking to purchase homes for their family than there are RE investors looking to purchase small unit count properties.

ci=Bismarck&st=Nor...This will help you determine how much demand there is and whether or not you can charge enough to cover your expenses and hopefully produce some cash flow for you.

This will allow you to qualify solely based on the income that is produced from the rent of the property.

I sold 2 properties that were taking up a lot of my time and were producing very little of my cash flow.2.

Once that extra rental started generating income, he realized the higher interest rate was just a temporary hiccup on the way to bigger returns.In your case, maybe look at a structure that keeps your best cash-flow property on a lighter refi (say 50% or 60% LTV) while you go a bit heavier on the one that’s not producing as much right now.

It would be a way of leaving an inheritance that's all wrapped up in an income producing bow. 

It's more important to own investment income producing property that generates at least 10% annual ROI than it is to own where you live.

Many of those properties don't actually produce income due to turnovers, vacancy, maintenance and damages and you're lucky if they appreciate enough to keep up with inflation.