Married - Different States of Residence

Can we file Joint Federal and Separate State? I’m a Nevada resident and earn 100% of my income in Nevada. Husband is a seasonal employee / Montana resident (lives there 6 mos out of the year and earns 100% of his income in MT). Can we file a separate State return for him? How do we ensure my income is not taxed by Montana? Also, if this is possible can we use the Online product? I’ve seen some similar scenarios where only the desktop version is suggested. Ideally we want to file One joint federal return and One State Return for my husband if possible. My income being earned in Nevada would not be subject to a State Return.