In any public hearing before the BSB to determine whether a building is in violation
of the conditions set forth in this article, which may result in a finding of public
nuisance and an abatement order, the owner, mortgagee, or lienholder has the burden
of proof to demonstrate the scope of any work that may be required to abate the nuisance
and the time it will take to reasonably perform the work. This burden is imposed under
authority of V.T.C.A., Local Government Code § 214.001(l).