There is very limited FA available for post-bacc. The only financial aid you’d qualify is a federal unsub loan up to $20,500/year. If the program you attend cost more than that, you’d need to qualify for a private loan or have a willing & qualified co-signer for a private loan.
You most likely need Mcat scores for admission to a formal post bacc program. In your case, since you have already finished a bio degree, its most likely you do not need a post bacc program, instead, you need a SMP to boost your chances to be accepted by a med school.
IMHO, you should take MCAT and apply for a SMP in a DO school, with 2.9 gpa you are too far out to be accepted by a MD school.
You start by retaking any science/math classes you earned a C-D-F in. Although grade replacement is not permitted, newer, better grades will go a long way to convince a program you have the necessary foundational knowledge, study & time management skills and determination to be successful in upper level electives.
There is no magic shortcut to fix a low GPA. It’s a long, tedious process.
its the same like any other program they require a 3.0 gpa. and the pre-med requirements to be fulfilled.
Biology One year of college level general biology courses (two semesters or equivalent)
Chemistry One year of college level general chemistry courses (two semesters or equivalent)
Organic Chemistry One year of college level organic chemistry courses (two semesters or equivalent)
Mathematics One semester of college level math courses (calculus OR statistics)
Physics One year of college level physics courses (two semesters or equivalent)
Having said that, I am not sure how someone can get into a medical school in the US without a strong MCAT score, even after post-bacc studies. The path to becoming a physician for someone who hasn’t done well in either in undergrad (GPA) or MCAT is a narrow one, at best. It is long and many exams ahead…MD studies, USMLE I/II/III tests, board exam.