The legal description may be the first problem
Older raw parcels are frequently described by metes and bounds referencing monuments that no longer exist, or by aliquot parts that do not close. A defective description does not prevent a sale, but it does mean a survey before a title company will insure it. We find this often enough that we treat it as a normal cost rather than a surprise, and where a survey is required to close, we arrange and pay for it.
Nobody knows where the boundaries are
On unimproved ground with no fence and no recent survey, the corners are usually unlocated. That matters when a neighbor has been mowing, storing equipment, or running cattle across part of it, because long-standing use can ripen into an adverse possession or prescriptive easement claim in most states. If a neighbor has been using part of your parcel for years, tell us — it is fixable, but only if it is known.
Access is the question that decides the price
The single largest determinant of raw land value is whether there is recorded legal access to a public road. Not a two-track you have always used, not a neighbor's permission, but a recorded easement or direct frontage. A tract with deeded access can be worth several times the identical tract without it. This is also the most common thing owners are wrong about, in good faith, because access by habit feels indistinguishable from access by right until it is tested.
Utilities and the cost of reaching them
Distance to the nearest power line, and whether the parcel can support a well and septic, determine whether it is a homesite or purely recreational. Bringing power a half mile can cost tens of thousands of dollars, and a failed perc removes the residential buyer pool entirely. These are ordinary, quantifiable numbers, and they are most of what separates two superficially identical parcels.
Taxes accumulate quietly
Raw land generates no income and is easy to forget, which is why so much of it carries delinquent taxes. Notices go to an address that may be decades out of date, and owners genuinely do not know they are behind until a tax sale notice reaches them. If that is your situation, the delinquency is settled from proceeds at closing and does not need to be cleared first.