def METHOD_NAME(corp_num: str, business: Business, business_info: Dict, filing: Filing):
    """Format and update the business entity from incorporation filing."""
    if corp_num and business and business_info and filing:
        set_legal_name(corp_num, business, business_info)
        business.identifier = corp_num
        business.legal_type = business_info.get('legalType', None)
        business.founding_date = filing.effective_date
        business.last_coa_date = filing.effective_date
        business.last_cod_date = filing.effective_date
        return business
    return None