Secretary of State Corporations Division (corporations search): https://icrs.informe.org/nei-sos-icrs/ICRS
Forms (select business type from list at left): http://www.maine.gov/sos/cec/corp/miscellaneous.html       MSB: Dept. of Professional & Financial Regulation (207) 624-8500 http://www.maine.gov/pfr/index.shtml

• Statutes: http://www.mainelegislature.org/legis/statutes/
• Financial Institution Statutes Title 9-B (Deposits): http://www.mainelegislature.org/legis/statutes/9-B/title9-Bch42sec0.html
• Minors Alone: http://www.mainelegislature.org/legis/statutes/9-B/title9-Bsec427.html (see "1. Minor's deposits or accounts")
• Uniform Power of Attorney Act Title 18-A http://www.mainelegislature.org/legis/statutes/18-A/title18-Ach5sec0.html (scroll to Part 9 "Uniform Power of Attorney Act")
• Probate Code Title 18-A: http://www.mainelegislature.org/legis/statutes/18-A/title18-Ach0sec0.html 
• UCC Title 11: http://www.mainelegislature.org/legis/statutes/11/title11ch0sec0.html
• UTMA Title 33 Property, Chapter 32: http://www.mainelegislature.org/legis/statutes/33/title33ch32sec0.html
• LLC Statutes: http://www.janus.state.me.us/legis/statutes/31/title31ch13sec0.html