No, you are not liable for his debts just because you claim him as a dependent. Were you married filing jointly, then yes, they would likely take it.
And your a tax "expert" correct? I called h and r block and they said not to claim him because they could take it.
Yes. It is not his tax return, it is yours. If you were married as above, it would be HIS tax return too.
Thank you so much. This is why I switched to you guys! Always knowledgeable and straight answers.