It is likely that you'll make some changes to the business after acquisition. It is recommended that at least some of the sections of a business plan, if not an entire plan, are written and included in a loan proposal based on what you expect the business to do under your ownership. Changes in personnel, business structure, or location all should be disclosed to a lender. The best way to do this would be writing a business plan for the business you intend to buy that discloses all the changes you expect to make. However, a loan proposal that includes this information is acceptable as well. It all depends on what kind of information your lender will require and how extensive any changes might be.