I will be working at rockville amazon warehouse very soon as part time seasonal associate. Is it possible I can convert to regular part or full time associate so I can work there permanently and do I need talk to manager about that?

I recommend you start first as a part-time seasonal associate. You can always upgrade later on cos I'm pretty sure there will be openings available in the foreseeable future. They always give priorities for conversion depending on your work rate and consistency.

I am in Maryland and I am looking for work I apply since online but nothing favorable. Can someone recommend me an address

Talk to management