That is a modern amenity that people look for in a renovated property.

Hell, if you don't want to, call me, I have a degree in Actuarial Science with a minor in Finance.

Even if you choose the “education-heavy” route (bachelors, masters, advanced degrees), you’ll quickly pass the vast majority of your colleagues who didn’t go to higher education (in science & tech fields).I was similar to you, and fascinated by money and investing.

Even if you have video of who did it, unless you can show that they are involved in the crime, your only option is to send a letter / evict that tenant and that takes quite a bit of time and effort; the joy of Ontario landlord-ing.As to an access control system, virtually any 'modern' commercial system will be more then enough for your needs.They can usually be set up to send a notification, assuming internet access, if a door is open for more then X seconds so if you have some one that can go over and see what is going on, it could help.

The modern family offices, i.e. wealthy families with tens of millions, are doing this now.  

So, to recap, meeting the demands of the modern homebuyer requires all of us to recognize there is a problem with how things have always been, accept that change is needed and seek out solutions that solve those problems.

Most of my RE Developer or Flipping clients are going with a fine modern acrylic sand float finish with an Integrated color.

It's not a perfect science, which kills me since I'm a numbers geek :) Would you folks agree with my useful life assumptions in the MW?

If you're old enough to remember Kodachrome 25, think of this as Kodachrome 10,000.Modern full-frame cameras can shoot at these ridiculously high ISO settings and still produce images suitable for online use. 

If you get a really good deal on a old building a total rehab may be worth it especially if you modernize it and still keep the old house charm.