I'm confused by TT statement trying to describe a qualified mortgage that: A qualified dwelling is a house, apartment, condominium, or mobile home not used on a transient basis. So this tells me the only interest I can deduct under AMT is for my primary residence. But then under "mortgage interest that's not deductible under AMT" TT states: Mortgage interest paid on a transient second home (like a boat or motor home) is not deductible for AMT purposes. This implies that TT's use of the word "transient" means that the property is not fixed to the ground and is therefore ineligible, but that can't be right because obviously a house, apartment, or condo cannot be moved around. So what about a first mortgage on my second home condo?
