Double Major Bio PreMed + Finance

Is it difficult double majoring in College of Arts and Sciences and Business School. Im currently a Bio major and plan to do a double major . Would it be difficult to do a second major in Finance? If Im unable to major outside the Coll of Arts & Sciences I will be looking to do my second major in Economics which is in Arts and Sciences. Any advice or tips to do this. Thank you for any insight you can give me on this !!!