Nobody wants to relocate for a job anymore.
Do you realize what you're asking someone to do that has an established home base, schools, their partner has a career/job, they have a community and support around them?
You want them to uproot their entire lives.. and for what?
Slightly higher pay and zero guarantees that you won't drop them at the first sign of trouble?
Figure out how to support remote employees, or just go ahead and remove the listing. You'll save yours and everyone else's time.