Here is some food for thought.
When a colonial country revolts, it declares war on everyone it punches out of with the "revolution" CB. In a revolution, both the revolter and parent nation can annex the other for 0 infamy.
So here's what you could do. Let's say Mexico revolts from Spain AND Great Britain. You are playing Great Britain. You could declare on Castille, destroy their armies and give massive war subsidies to Mexico. Help Mexico occupy 100% of Spain and they can and will Annex all of Spain as part of a revolters "all or nothing" AI. With Mexico completely annexing Spain, you can then annex all of Mexico for 0 infamy as they are also a revolter nation to you.
HAven't tried it myself, but it's a thought.
When a colonial country revolts, it declares war on everyone it punches out of with the "revolution" CB. In a revolution, both the revolter and parent nation can annex the other for 0 infamy.
So here's what you could do. Let's say Mexico revolts from Spain AND Great Britain. You are playing Great Britain. You could declare on Castille, destroy their armies and give massive war subsidies to Mexico. Help Mexico occupy 100% of Spain and they can and will Annex all of Spain as part of a revolters "all or nothing" AI. With Mexico completely annexing Spain, you can then annex all of Mexico for 0 infamy as they are also a revolter nation to you.
HAven't tried it myself, but it's a thought.