[Selanne_200]

I don't think this is a case of whether you're going to have to come home and work or work abroad. It's more a case of whether the property is considered primary residence or investment property. Like tiger pointed out, for an investment property, most of the major banks now use a different formula is deriving their debt service ratio.
When I talked to a scotiabank advisor a while ago, your rental income is reduced by i think 50% and then 25% of the remainder will be added onto your income to service the debt. I think the ideal situation is to convince the lenders that the house is your primary residence but you're also receiving rental income for portions of the house