Regarding boundary lines, which statement is true?

The statement that boundary lines are based on professional opinions of surveyors is accurate because surveyors apply their expertise and methodology to interpret property descriptions, legal documents, and the physical characteristics of the land. They consider various factors, including previous surveys, land records, and natural and artificial monuments, to determine and delineate the boundary lines accurately.

While surveyors operate based on established principles and industry standards, their interpretations can indeed reflect professional opinions, especially when dealing with ambiguous property descriptions or disputes. This means that surveyors assess and make judgments about existing evidence to define boundary lines, which inherently involves a level of subjective analysis based on their training and experience.

In contrast, monuments, which are physical markers or landmarks used to define property boundaries, do provide critical information. However, stating that they are the sole source of truth oversimplifies the reality, as boundary lines can often involve complex legal and historical contexts. Similarly, while mortgage loan inspections may help in understanding a property's boundaries, they do not provide the same level of detail and accuracy as a full survey, which is often more comprehensive and legally defensible.