I'm learning that the hard way. Started working for this company 2 hours from home,because I could WFH 3 days a week. Now they want me to come in 4 days a week. So I'm looking for a new job now. Which is a shame, because I do like the job.
Previous pay stubs I suppose. Depending on the employer you may have something in writing. This typically wouldn't be contract if you're an employee without a union.
Land of the free and all that. Free from paid healthcare, a decent public education, a strong voice in government, an impartial justice system, employee rights... With all this freedom, it's hard to imagine wanting to be anywhere else.