Is ROTC available for Master Programs or is it just undergrads?

Yes you can pursue a master’s degree via ROTC. Contact the Recruiting and Enrollment Officer at the school you wish to attend.

Yes and I saw two examples with this past commissioning class. Had a friend start rotc freshman year and completed a fast race masters degree in accounting in 4 years while in rotc. Had another fraternity brother that already had his 4 year and came to our university to do his masters (joined the MS-3 or junior class and graduated with them the following year)

Yes you can! I have one piece of advice for you though. Take advantage of that time as you’ve already met all academic requirements, except the MS classes. Focus on PT, Land NAV, and TLPs. You don’t have to earn your Masters while you’re enrolled, but you have to remain full time. Good luck!