can my daughter be asked to resign her job and then go on maternity leave?

My daughter recently secured full-time employment (3months ago) She has found out that she is pregnant. She understands that she will not be covered under the Family Medical Leave Act but her employer is asking her to resign and then go on maternity leave at which point she will be reinstated upon returning to work. Is this legal? She has also been told that she will not have any medical benefits while on leave and no STD. She is paying for STD and LTD as well as medical benefits. How does the law protect women who wish to go on to maternity leave? She was also asked to work part-time from home while on leave which she will not receive benefits. Should she petition the HR Department or seek legal advice? Thank you for your time.