John Deere Deere & Company John Deere Z235 mower purchased through Lowes. Did not work from day 1, 5 service calls later still does not work. Internet

I purchased, for $2,600, a new John Deere Z235 zero-turn mower via Lowes.com in March 2014.  The unit did not run correctly - with engine racing and then stalling repeatedly when used on a hill - from the first day of operation.  It has been evaluated four times -- over a period of nine weeks out of my possession - by the Akron, Ohio, area John Deere dealer, who could not identify and correct the problem.  I am now in season 2 with this mower and it is almost totally inoperable, with repeated stalling/lurching anytime it is mowing on a modest incline.  I have contacted Lowes multiple times, and they point me to Deere.  Deere says it's a Lowe's issue.  Meanwhile, I am out $2,600 - plus a $300 extended warranty! - and am getting absolutely no satisfaction.

I tookm the unit to a third party equipment dealer for their appraisal and was told the unit has either a faulty carburetor or an internal engine problem.  They recommended that I demand a replacement unit.  I have done that twice, but cannot get a response from Lowes or Deere.

An attorney is my next call.