I am almost leaning toward the latter because it seems easier to quantify and justify.  

I am looking to do my first deal in London, ON, but want to understand the potential costs of Insurance for rental properties, from what I understand student rental properties do cost more, but I want to better understand what that truly quantifies into?

Risk can, in a very very simple way, be quantified by the severity of the event and the likelihood of that event happening.

(b) Unless you are otherwise employed in “construction,” I do not see how you would be able to quantify your own hours of labor in terms of a dollar figure.

Its always a gamble but the flood variable adds risk that is hard to quantify up front.

The appraiser should have gone outside the time range of 9 months if needed to determine market value.My lender filed an appeal for the appraiser to quantify certain adjustments (lack of condition/curb appeal, lack of adjustments for bedrooms/bathrooms, lack of adjustments for other desirable features in my market such as porch + deck + Single-Family Detached Home (used twins/townhouses as comps with no adjustment).

The 50% rule, while usually close, isn't close enough for me as actual computations on a particular property, granted, you need experience in that market and a history of management.I'd say this matter of DCF is beyond the scope of most investors on BP, I might go as far as to say that some attempt to solve or quantify thier investment strategy are doing so because of a greater awareness in finance and ego.

I only quantified it with I don't call them again.

How do you quantify/ come up with your figure?

These questions help quantify how much brain damage you'll have to endure.