@KrisD15
Thank you. I think there are two things I need to deal with here. One is that if it was totally OK to have kids been claiming 50% of income and expenses for their tax returns from 2016 (purchase date) to 2021 (ownership transfer date) since I was not involved financially for maintaining the property. I could take your advice to treat my portion of the initial down pay as a gift to them. But this would involve filing a late F709 for year 2016 when I had f709 filed for a few other years since then, which will become inaccurate as a result of 2016 f709 filing.
Another thing is about the F709 filing for 2021 when the title was transfered, my original question. It seems like I should not claim 1/3 of the depreciation for the previous years (2016 to 2021) since kids had been claiming 50% each in their tax returns and I have been claiming ZERO of the depreciation for those years.
