The tax benefits, debt pay down, and historic appreciation will make up for it over time. 

You need access to the seller's historical financials.

Has anyone installed magnetic windows inside inefficient historic windows?

@Mary JayExcept for this recent long run of economic growth, historically on average there's a recession every 4 to 5 years.

The first property my wife and I decided to purchase and rehab was a 1904 SFH in a historic district.

Figure out what the index is, and see how it historically has tracked with rents in Abu Dhabi, if you can't find that exactly look for at least something that tracks UAE rents over time. 

First 5.875% is cheap money historically.

@Adrian Fajardo it depends what you need but overall having business experience and or historical syndication success would be important

Housing prices are fairly stable historically, and to the extent that I need to live somewhere, I might as well gain both experience and purchasing an asset while doing it. 4) In this ever-increasing technological society we live in, I might not be living in the same place for 30-years like previous generations.

Of that portion, it mostly goes into bonds, which are historically not a high performing asset.