Tessgan:
Principle residence?
The tax on capital gains comment was referring to investments being sold, not to the principal residence.
Claim rent on your income taxes? Really?
A person may not qualify for OAS or have it clawed back if their taxable income (which would include capital gains which are 50% taxable) rises above certain defined levels in any given year. This could occur if one were to sell somelong-held investments from their portfolio.
FYI
SFI