May I take both a pull along suitcase and a 2' soft, boho shoulder type bag?

Yes ,you can carry a shoulder bag on the bus, the roll a long can be checked in .At transfer stations you have to pull your luggage from one bus to another.

Lisa F Green I did and they didnt say anything

Yup

Yes, if you carry your shoulder bag on the bus as a carry-on, you can also put your rolling suitcase under the bus.

Yes you can