I signed the following lease reading the Leasehackr forum (and Edmunds) for guidance. Sharing in case the data is helpful.
I did 95% of the process by almost entirely by email. The total discount was 20%, a few dealerships were higher than that but not as convenient, and I got stuck with several dealerships closer to 15%.
I was also considering the 2019 GLS and got over 20% on loaners and could only find one 2020 GLE loaner with a very thin (10%) discount.
Year, Make, Model, and Trim: 2019 Mercedes-Benz GLE400 (4K mile loaner)
**Selling Price: $49.5K (20% including $1500 fleet incentive which could not be stacked with manufacturer incentive)
**Monthly Payment (before tax): $545
**Cash Due at Signing: $545 (first month)
**MSD: $3K (effectively brought MF to 0)
Incentives: Fleet (included above)
Annual Mileage: 10K
MF: 0.00035 (before MSDs which took the MF down to effectively 0)
Residual: 52% (before excess mileage deduction