You are about to enter a world of pain.
Not only do you need your business lawyer looking at this but I would strongly advise talking with an experienced tax advisor. One with an aviation based practice.
Structuring leases as you have been advised will almost certainly ensure that any tax depreciation your company is (or has) taking on the aircraft will be affected. You need to understand the consequences, especially if any of the managers use the flights for anything not 100% business related, including travelling with the wife (and/or kids) to a business meeting.
The IRS view of the activity is in no way related to the view the FAA takes via the FAR's. What you structure may be OK and legal under part 91 but could be treated as charter income by the IRS...it is a minefield.
Good luck......... your next ramp inspection will be nothing put pleasure compared to the journey you're embarking upon....
