Yes, you can. When you lease a car you have the option of purchasing the vehicle at any time. When you go in to make a trade, the dealership will have to call the leasing company and get your payoff. Basically the dealership will pay the remaining balance of the lease and purchase the vehicle from the leasing company. It really depends on your situation, in a perfect world, the vehicle buyout would be the same as its trade in value but that is ususally not the case. If you have a closed end lease, you would be better off if you waited the lease out before purchasing a new vehicle. You may be fortunate enough to have vehicle that is worth more than the lease buy out amount.
These days, there are a number of services which match people who are looking to lease cars with those who are looking to get out of a lease.
You can trade the cars all in for what you want. Trade for what is on the market
Get someone to take over payments, via an ad in the paper. Trade it in, or give it back to the bank, and take the hit on your credit.
No, because it isn't your car.
When the lease expires
Yes
yes
That's what insurance is for.
Yes
Yes
Yes, you can use a leased car as collateral for a loan, but it depends on the lender's policies and the terms of the lease agreement.
For the purposes of insurance, Yes.
yes