My wife and I are confused whether we have to report our condo unit rental to a tenant (4 months in 2019). We have been living in Europe since Sept 2019.?

Yes, the CRA requires that you report any income earned throughout the year including rental income.

Please review the link provided below for assistance entering your rental income into TurboTax:

• How do I enter my rental income and expenses in TurboTax?