With many thanks to all forum members, I have been able to score some great lease deals for myself and my family.
Here is the most recent one:
Year, Make, Model, and Trim: [2017 C300 4Matic, P01]
Loaner 3,200 miles
MSRP: [$46,755]
Selling Price: [$34,370] - including rebates
Rebates: [$2,500 Fleet] - basically the $2,000 incentive that was already available + extra $500 for fleet.
Months: [24]
Annual Mileage: [12,000]
After I considered MSDs, decided to go with One Pay. Was able to get the dealer to agree to total one pay of $6,250, which comes to exactly $260 per month - all in.
Thanks again guys. This forum rocks!