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My dad has 2 leased cars in his name, both thru GM. Though DTI will play a role in your ability to get 2 for sure.
As a general rule, yes you can. It would be no different than having 2 auto loans. This all assume income, DTI, credit scores are in line. Sounds like yours are. Find another dealer.
Yes you can. Just like you can have 2 auto loans, 2 mortgages etc. DTI and credit score will be the deciding factors. I had 2 auto loans back in the day with no issue.