What is a good reason to tell the leasing company (Lexus Financial) for allowing to extend a lease agreement an additional up-to-6 months?

 

I don't believe you need a reason.Just ask.

 

ask what is the worst thing they are going to do SAY no

 

I would think they would be happy to extend your lease at your current payments. Normally longer term leases have lower monthly payments as the rate of depreciation slows from year 3 to 4.

Let us know what they say.