First, the parties can submit written objections and supplementary questions to the court-appointed valuer, which the valuer must answer in a statement.
If significant doubts about the professional accuracy remain, an oral hearing of the valuer before the court can be requested.
In particularly contentious cases, the court can, upon request, commission a further appraisal report from another valuer if the first appraisal report exhibits gross methodological deficiencies.
Supplementary questions can also be submitted in writing during ongoing proceedings, which often saves time and costs compared to an oral hearing.
Gross methodological deficiencies that justify a re-appraisal typically occur when incorrect methods have been applied, obviously unsuitable comparable properties have been used, or clear calculation errors are evident.