A common variation of it is this:  Make 100 calls, get 50  good leads (whatever that is at random), make 10 offers, get 4 accepted and make 1 deal. 

I want to echo that Ottawa has a strong, stable and diversified job market, and looking at historic data, Ottawa prices rarely see the type of variation other cities like Vancouver, Toronto, Edmonton, and Calgary sees.

There’s are a few factors that go into depreciation, and there can be variation based on your income sources.  

COVID-aside, how much variation have you had in terms of annual occupancy rates?

Some varieties/ages/trellising are looking almost untouched and others are looking like they will only have vegetative growth this year (mostly young vines we would have knocked fruit off of anyways, thankfully).We were also in varying stages of budbreak ("green-up"), which means we will have different variations in damage.

There could be variation within product types that this isn't capturing.  

@Dean Fiacco I have been doing student rentals for a long time and I have dealt with some variation of this dozens of times.

How much of a variation/range should I look at in other houses.

I have excellent credit and W2 and had 11 banks and brokers tell me I HAD to put 20-25% on a fourplex. when I asked why and they said that's what they require or some variation of the following.

As far as "average rent," that doesn't exist as wide variations occur between markets as well as how the property will be utilized (short,long term rental or vacation).