Written for attorneys and the people advising them. These guides cover what separates an appraisal that survives cross-examination from one that does not, and it is rarely about the final number.
Reports fail under examination for a small set of recurring reasons: a vague intended use, an unexplained effective date, comparables that were convenient rather than comparable, and adjustments that turn out to rest on experience rather than evidence. Getting those right is unglamorous and it is most of the job.
One thing no appraiser can promise is admissibility. That is decided by the court, in the specific matter, and anyone guaranteeing otherwise is telling you something they cannot deliver.