I'm giving a lot more credit to their last 5 years too than ancient stuff.

Other than that possibility, floating seems like the way to go.ALSO, in the house I'm rehabbing now, we pulled up the ancient carpet and found even older glue down tiles (possibly asbestos) in portions of the house. 

I don't know why I have to tell grown folks to occasionally wipe appliances down and keep them clean, but there ya go.The poor unit is only two years old but it's starting to look like the ancient thing I pulled out of there when I redid the kitchen.

Even if plumbing is all new in the building if main is bad from the street to the building you can have water pressure, leaks in ground, and back up issues.That doesn't even get into knob and tube wiring, lead based paint, asbestos, old heating and cooling systems that are now outdated and must be replaced, ancient water heater systems, unpermitted or grandfathered additions over the years, etc.Ask the owner if they have a recent engineers inspection report of the property they can share with you.

I've been investing in stocks, which has been okay, but it's increasingly risky as the market seems to be saturating on imagined returns.My goals are to be able to afford a much better home than the condo I currently own and to visit ancient spots in Europe to inspire an eventual writing career (or similar) once I have enough to not need a full time job.  

King Solomon, the wisest man of the ancient world said: “Divide your portion to seven, or even to eight, for you do not know what misfortune may occur on the earth.”Ecclesiastes 11:2Those words are just as accurate today as they were over the centuries.

In my ancient rentals wallpaper is often the only thing holding the walls together!

Looks ancient...but you maybe able to retrofit something like the one here or ask them for advicehttps://www.partsaps.com/10kw-heating-element-for-...

There are many places to eat(Pizza, Boston Market, Dunkin Donuts, Bagel Deli, Indian, BBQ, Greek) and stores (7/11, CVS, Auto-Zone, TD Bank, Post-Office, Florist, Gas station) all within a three-minute walk.

That’s all depending on whether it is knob and tube which is ancient or just older wire that didn’t have a ground.I would look at the fuse box to see if it has modern breakers and what the main service is.