@Daniel Bronstein I'll probably be the only one to say this but if you like them both equally, accounting. You'll have almost a guaranteed job and a good one at that. One of the biggest assets for funding your REI will be your personal savings from your career. You can do all the REI math you want without a major in real estate finance. You cannot do all the accounting you want without your CPA. Plus, your accounting degree should teach you tons of useful things for when you get into REI. Maybe you can specialize your career. Tons of investors on here are always looking for a CPA with real estate experience.
I majored in finance and minored in real estate. I learned tons in my two real estate classes and it grew my interest. And the classes overlapped and counted for my major. Are you able to minor?
Of course if your passion for real estate finance is so strong it consumes you, you should go for it. Good luck! Sounds like you can’t go wrong either way!