Tom K, this is a good question..,best way is to ask them directly exactly how much land they are leasing, and how big is their budget for leading. Then Cross check with the Maasai Mara Wildlife Conservancies association/ Northern Rangeland Trust/Laikipia Wildlfie Forum (and I am sure there are associations down in Tsavo as well) or ask at Kenya Wlidlife Conservancy Association.
If the property themselves are not willing to put their answers directly in writing so they can be checked out with the local associations, then they are probably fibbing to get your business.
That's just what I needed to know.
I really appreciate your kindness in taking time to respond.