Surveys are expensive. This place did not have a valid survey. Previous owners had to provide one before selling, since they did not know within 50 feet where some of the lines were. If you have a survey, make sure you mark and protect the corner markers. I set T-posts just inside of each corner marker and keep them flagged with survey flagging. I think the survey of this 12 or so acres cost them over $2,300. Not something you I would want to repeat.