GMC Ally Auto Will not allow a leased vehicle to be turned in early Nationwide

I leased a 2012 GMC Terrain n 2012.  I sustained a medical problem that disallows me to drive. I have a year left onlease via Ally Auto.  They will not allow me to terminate lease even though I agreed to apy balance owed for lease.  Thus, they advsied I am stuck with vehicle until it expires and I ahve o0t retain insurance coverage even though it will be off road... and that will cost me in excess of $2,000 as my rate had been increased.  I owe $2,000+ in lease payments which I agreed to apy... biut they said no way can I turn in vehicle... and I still ahve ot keep it insured even though it will not be driven. Add to that local property taxes and I forced into keeping the vehicle for another 12 months at an out of pocket cost of over $5,000.  I cannot drive and have been suspended via medical condition.  As a retired senior, I am overwhelmed with this deciosn with Ally Auto Financing.  I cannot beleive it is at all proper to disallow me the right to turn in vehicle as I cannot drive anymore.. live alone and thus will have to be stored on proprty while paying excessive costs for insurance and county taxes... just because Ally Auto.. the leasing arm of GM sales.. says so.