Can I apply to RPI, Union,and Siena College at the same time even though they feed into the same medical school (Albany medical school) for their BS MD programs?
No you can apply through 1 feeder school for AMC from this year onwards. If you apply through more than 1, it seems they will disqualify all your applications.
I think you can still apply for the individual undergrads only for any or all of them (without BS/MD)