Is there a legally mandated filing fee and/or deposit?

Bosnia and Herzegovina
Answer
No
Source
Name: Election Law of BiH
Enactment: 11th March , 2013
Link:http://www.izbori.ba/Documents/documents/English/Laws/BIHElectionlaw.pdf
Name: Instructions on procedures for complains andappeals filed at the Central Election Commission of Bosnia and Herzegovina, andthe electoral commissions.
Enactment: 29th April 2010