The first-term Democrat signed the measure on Friday and called the leasing of pets "predatory."
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The bill's sponsors say the measure was necessary because some pet dealers will enter into lease agreements to make high-priced pets seem more affordable to consumers.
Democratic Assemblyman John Armato says that's not the case and that lease deals result in consumers paying pay more over time than the retail price of the pet.
On top of that, he says, the person might not fully own the dog or cat.