Resume - Applying out of state but not relocating??

If you live within reasonable commuting distance I don't think it matters. I lived out of state for my previous job (non-nursing) for 13 years, never an issue. Of course living in the DC Metro area lots of people cross state lines going to work.

If you're willing to do the commute it should be fine.

If you plan on working in MD, then get your MD license. If you intend to work in PA, then don't worry about it. I live in Indiana and work in KY. Unless I decide to get a nursing job in Indiana, there is point in getting my IN license.

Eh, I've worked with many a nurse in MA over the years who live in RI or NH. It's understood that people regularly commute to Boston from NH and RI so it's not something that would cause one's resume to be overlooked. I've actually even worked with people who lived in Maine. People commute to NYC from CT and NJ and people in South Jersey and some parts of Delaware commute to Philly. You go where the jobs are.

When applying for jobs, using an address from a different state is a non-issue; people apply to jobs from out-of-state all of the time, sometimes from thousands of miles and several states away. However, I believe you'll need a license from the state within which you intend to practice, regardless of your permanent address; if you're planning to work in MD, you'll need an MD license. It's kind of unclear from your post whether or not that's your question.

When applying for jobs, using an address from a different state is a non-issue; people apply to jobs from out-of-state all of the time, sometimes from thousands of miles and several states away. However, I believe you'll need a license from the state within which you intend to practice, regardless of your permanent address; if you're planning to work in MD, you'll need an MD license. It's kind of unclear from your post whether or not that's your question.

The OP is licensed in PA and desires to work there. She is asking if she should use her MD address on her resume for PA jobs or use her parents' address in PA because she is concerned about being overlooked if her resume lists an MD address.

I think places that are near state borders recognize that people are going to cross state lines for work. Where I lived before, nurses were living in one state and working in the next state.