1. Yes, definitely some sort of fine- anything between $1,000 and $10,000 with possible payment plans.
2. Deport all criminals, anyone with a criminal record.
3. Secure the borders to keep the problem from growing.
4. Come up with a solid, attainable and timable plan for legalization of all illegal immigrants and immigrants in the process of legalization.
I know, very simplified, but there's no way I can come up with anything comprehensive enough, so I'm leaving it there