So I imagine the vinegar really helps, but I would still seal any porous surface with an oil based paint like Kilz.

I find it impossible to believe a person with enough capability to acquire 10 properties, facilitate in any fashion for tenancy in those properties, I just find it impossible to believe that person then is going to ignore all basic sense of having a default clause and securitize for performance.  

Over a 3 month period, the chlorine caused the sink, the faucet, the stove burners, and all the metal utensils to become covered with surface rust. 

@Wally Burbage The only con for having this written into a lease is the inability to increase rent on a timely fashion (if you want to or not).

Crunch the numbers to see if upfront savings on a property purchase made in this fashion may cost you more in the end.All the best!

Warren Buffet owns vast amounts of trailer parks, Clayton Homes and Vanderbilt Financing - there is a niche there for the vast majority of the US public going down the toilet but want to do it fashionably.

I also think there are very few colors that you can do a whole house on every surface and make it look good.

The U.S. was still cheaper.I don't know how Singapore can even be a possibility unless you are independently wealthy as they were rated I think # 6 most expensive city for real estate in the world recently.When I lived in the Emirates there was a ton of development in Dubai and Abu Dhabi that was very fashionable to purchase/invest in.

Be OK with a modest ROI on your first deal or two, working hard for them, and focus on learning -- the old fashioned way. 

Next comes non-finish work that can damage finished surfaces.