Just to clarify the term “need blind”.
When a school is NEED BLIND, they mean that they don’t look at your financial information when making a decision about admission. If you are accepted, you may be accepted without any funding. They are BLIND to whether or not you NEED funding when deciding to admit you.
Also, if a college states that they meet 100% “demonstrated need”, they are saying that they will determine what your need is based on their formulas. Some schools may consider your parents assets as being available to pay for your schooling. They decide what your demonstrated need will be.