Quote from @Nate Sanow: Yes I own two that are near 100 years old and I will tell you they are a pain in the you know what compared to all of my post WW2 properties especially post 1980… layouts are better in the last 50 years and energy efficiency is better and I can keep going… HOWEVER to reply to the other aspect of your question, I’ve found appreciation is better with older properties in areas of the path of progress.

Utilities are OFTEN overlooked so reach out to power, telecom, gas (or go all electric), water, and sewer to make sure you understand what it would take to get separately metered services from the primary house.

BTW there is a free trial and the Starter monthly plan is $119.It also allows you to search through consumer information such as property owner "credit worthiness," Credit card usage, buying power, age, language, family members in the house, and many other fields that are above and beyond property characteristics, which is unique.

It's a power play. 

This is significantly lower than the mid west in the US.A really nice thing over there is that rents are often payed once per year.Dubai have a very consentrated power and decision organ which leads to very low predictability.

I have other existing consumer products.So I would outfit the RV with Solar and Starlink to provide power and internet at all times. 

This could include new appliances, energy-efficient windows, or custom finishes.Clean and Declutter: Ensure the property is clean and free of clutter.

They claim it is a triplex (two regular units and an "efficiency unit".

Well, they are very efficient.

Talk to house hackers because that would be a great way to start, but you are also advanced with money so you may find smarter options that act more like index funds (syndications).Yes I was actually looking at syndications that was going to be my next research topic that seems extremely interesting and powerful syndication seems like an awesome way to diversify without getting my hands dirty necessarily.