Since the 'report' came from Stephen A, just have to take it with a grain of salt.
https://sports.yahoo.com/rumor-kawhi-leonard-advisor-uncle-180512395.html
"This is me putting on my reporter’s hat here. People in NBA circles are talking about this right now. Allegedly, the uncle, Uncle Dennis, was asking for a lot of stuff from the other teams. Houses, planes, sponsorship, guaranteed sponsorship money, just as an example. They’re throwing this stuff out there.
I have no idea whether this is true or not. I’m not trying to cast any aspersions on Uncle Dennis. But people in NBA circles are talking about this as we speak."