Can we claim caregiver credits for a down syndrome man, even though he is receiving odsp ?

[TurboTaxSarah]

Yes, you may be able to claim the Canada Caregiver Amount if he meets the conditions outlined here:

https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...

If he is eligible for the disability tax credit you might also be entitled to claim all or part of his disability amount on your return.  You can check the criteria here:

https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...