The problem is that there is no blanket statement to give you. States have different residency requirements. Some are more lax than others. Same with college costs.
As an example of one - when my D was applying she had costs ranging from full tuition scholarships which would have only left room and board costs of roughly $10K/year to schools costing $86K/year, and everything in between.
We were in the process of moving at the time and had two residences in different states. We had been paying taxes in both places for years but only the one which was our primary residence “counted” for instate tuition purposes. The other said that we would need to have two years of that residence as our primary, and then they would reevaluate D for instate tuition but they wouldn’t guarantee that it would be approved. (I’m sharing just to highlight that it’s complicated).
The issue with transferring from CC to a 4 year is often the most generous scholarships are for incoming freshman.
You’ve gotten some great advice in this thread on some schools to look into and also for some states where establishing residency is easier.