Some people have an affinity for surveying or a related field ?n their blood,?and quite a few have it, literally, ?n their bloodlines.?There are a lot of multi-generational practices. These are more common among small, local firms providing, say, residential lot surveys; the nature of these firms means that they are often sole-proprietor with local knowledge and a client base that makes the following of one? parent? footsteps an attractive option.