Whitcomb The Feared wrote:1. A cooldown of 15 or 30 days for changing nationality (to avoid frequent changes)
This has been suggested many times. I'm in favor of some form of slowing changing nationality.
Whitcomb The Feared wrote:2. A limit of the treausry as for stipends. When the treasury goes below X, the nation doesnt pay anymore for attacks or skirmishes on enemies
This already exists. It's the Nation itself that sets X anywway.