(a) The appellant and the appellee must file a “Certificate of Interested Persons,” certifying a complete list of all persons, associations of persons, firms, partnerships, corporations, guarantors, insurers, affiliates, parent corporations, or other legal entities who or which are financially interested in the outcome of the appeal.  If a large group of persons or firms can be specified by a generic description, individual listing is not necessary.  Each such certificate shall also list the names of opposing law firms and/or counsel in the case.

(b) The appellant must file a Certificate of Interested Persons no later than 7 days, and the appellee must file a certificate no later than 14 days, after the district clerk dockets the appeal under Fed. R. Bankr. P. 8003(d)(2) or 8004(c)(2).