If T-bills are considered for 19.3K requirement then probably that's the reason (not the deed). Thanks for the confirmation.I also used treasury bills, maybe that is why.
Below is an extract of the letter they sent me.
You must possess sufficient funds and/or income from an Ontario employer to cover the settlement costs for yourself and your dependent family members, whether they are accompanying you to Ontario or not.
For a family of three, the minimum settlement funds required are $19,390 CAD.
• An updated letter from your financial institution confirming that the funds contained in your bank account meet the minimum settlement funds requirement and can be immediately liquidated or redeemed on instructions and at what value.