Sort out your colleagues, to easily find the people in your local meetup, other investors in your area, or go deep and sort them by niche to quickly find the agents or fellow landlords in your circle.

With the GI bill and medical retirement, school will be my "job" when I get out because those two will easily cover my expenses. 

The osb board can easily be replaced if rotted.

Now the door is tight and opens and closes easily.

You could easily go upside down with a few extra vacancies, difficult evictions, or major repairs.3) you cannot be afraid to walk up to your own property and knock on the door to get to the bottom of an issue

I know what neighborhoods were up and coming, and can get everywhere very easily.

How I would determine it: if the unit tends to be difficult to rent; if it attracts the kind of renters I try to avoid; if I could easily replace it at a lower price and make a significant profit from selling it; if I had too many units or was tired of dealing with that particular unit (high maintenance, for example). 

. ;) I prefer solid hardwood mostly because it can easily be refinished, but i'm seeing a lot of benefit from going with the engineered products too.

Both are good options that can easily be held for years to come.

This is a reasonable number that one can easily acquire in 5-10 years if they put just even some of their pay check to the side each month.