Just remember it's a forum primarily for real estate investors, so most of the responses you'll get are from the perspective of people who prefer real estate as their investment vehicle.

One of the strategies our clients use when they don't need the income right away and are in a position to buy multiple properties is to use alllll the cash flow to pay off each loan in turn, resulting in free and clear properties much more quickly and less total interest paid.

@Storm Silva I guess the other perspective is that while ROI/IRR is important, so is profit in total dollars. 

Try to look at it from his perspective. 

Hey Troy,If you don't want the hassle of multiple properties, I would sell your current properties to purchase a 20+ unit building.

Most are getting multiple bids at listing. 

I could see more that maybe children would want a lump sum inheritence but maybe it would actually help from a tax perspective because it wouldn't be a lump sum and therefore would carry smaller impacts from an estate tax standpoint, depending of course on estate size, etc.

Is it the multiple kitchens, or perhaps multiple entrances?

From a strategy perspective, I think I am leaning towards buy and hold.

Again, this question has multiple parts and this is a short, rough answer.