For the most part, I use memorized sales receipts to record rent. The exception is when tenants have arranged to pay bi-weekly or have a special arrangement to pay late or split payments. I also have one tenant whose e-transfers are limited to $1000, so they pay in two chunks. In cases such as these I find invoices easier. I use items for rent for each suite, garage, and utility payment (for split utilities in up/down duplexes). These are detailed in the memorized sales receipt or invoice, so recording is easy.
I hated GST recording. My previous accountant set me up with a GST number, but my GST-taxable income was less than $30k and the rebate was a wash, so the CRA kindly deactivated my registration. Now I don't track GST at all. (I must reconsider it now because I am buying some new up/down's and will be able to recover GST.)
I leave depreciation until tax filing. I don't claim depreciation on my RTO's as they will be sold within a year or two. I decide at tax time whether I want to claim depreciation. It is only tax deferral, and depending on income and intentions for the property, it sometimes makes sense to not claim it.
This is the first year I have owned regular rentals within my corporation, so we'll see at tax time what my accountant recommends for depreciation within the corporation.
Either way, I don't account for depreciation on a monthly basis. If required, my accountant will make an adjusting entry at year end.
I do break out building, land, and appliances, but it's a bit of a moot point since it is usually completely subjective (and because depreciation tax breaks eventually get recovered, assuming one sells for a higher price than one buys).
