(Old 1960s duplex)Any suggestions on this installation?

Probably be a good idea to make sure you know how to fill it out properly.

How can I incorporate a proper value - say the latest real estate appraisal- into the balance sheet for each property?

In Ontario they take half a months rent for commission I believe (could be wrong about this).In terms of moving the tenants in and out for an out of province property I'd consider installing a lock with a passcode you can change digitally, that way it's as if you have a permanent lock box on at all times & you can ensure security by changing the code from time to time. 

I always locate a manager before I look for a property. proper management should be in place on the day of closing.

HOW TO PROPERLY STRUCTURE BUYING A HOME WITH CASHWith these rules, you can see how it can be confusing to get conventional lending when buying a home with cash but there is absolutely a proper method to structuring your deals when buying cash.

They take care of my properties and keep them running properly. 

It will help me a great deal in phrasing things properly when I ask questions. 

If I ended up installing the security door can I charge her for the installation?

I've been thinking about just polishing the concrete slab I have and sealing it off instead of getting laminate floor installed.