What happens next?

How to make a job offer to prospective candidates
Ask about the candidate's prior and expected income.
You need to be sure that any candidate you interview might be in a position to accept your job. An important piece of information you need to gather is how much the candidate has made in previous jobs.
You could put a question on a written application asking the candidate to list their salary for their past three jobs. You should also consider the differences in cost of living between the sites of the old job and new job, and also impact of state income taxes in each area.