Now I admit it's been quite some time since I've leased a car but I believe the foolowing to be true.
Almost all leases nowadays have "gap" insurance included automatically. This covers the difference between what's owed on the car (to the finance company or bank) and what the insurance company will pay on a total loss. (e.g. car costs 70,000, totalled after 6 months, ins. co. pays off 62,000, finance company is still owed, say, 67,000, GAP pays the difference, or $5,000)
However, if you paid a cap cost reduction of, say $6,000, finance company finances $64K. In above example, insurance co. still pays 62,000, balance of loan after 6 months is, say 61,000, YOU GET BACK only $1,000 (of your original $6K cap cost red). and the GAP insurance doesn't even kick in. YOU, effectively have let the "GAP" insurer off the hook. YOU have suffered the GAP loss out of your cap cost reduction. NOT a good deal.
I don't believe there is ANY problem discerning the actual Cap Cost of the car. It's part of the leasing agreement. Simply ASK the salesman/dealership 3 things. The Cap Cost, the residual and the money factor. These, I believe MUST be divulged to you and MUST be part of the lease agreement.
As for NY insurance I don't quite understand the problem. Hasn't the OWNER of the car ALWAYS been liable ? After all, it is the CAR OWNER that is insured, not the driver. It has always been thus, no ?
Even old leases. The leasing company OWNS the car, not the leasee (even though it's the lessee that MUST get the insurance AND pay for it)
What's different now ? Is it the "unlimited" liability ? I don't believe liability like that is EVER limited, is it ?