How do I find a property's exact boundaries without hiring a surveyor first?

There are a couple of free starting points worth checking before committing to a survey.

• County GIS parcel viewer: shows an approximate outline of the parcel's boundaries based on recorded plat and tax data, which is enough to get oriented on general shape and rough location of the lines.
• Recorded plat at the register of deeds: if the parcel was previously surveyed and platted, that document shows the boundary lines as recorded at the time, along with dimensions and bearings.

Both of these give a genuinely useful general sense of where the lines fall, and they're worth checking early, especially before making an offer or deciding whether a parcel is worth pursuing further.

Where this approach has a hard limit: neither GIS nor an older recorded plat is a legally binding determination of the current boundary. Fence lines can drift from the recorded boundary over time, older plats may not reflect the precision of modern survey equipment, and any encroachments that have developed since the original survey won't show up on either source.

For anything where the exact line actually matters, building near a property edge, resolving a boundary question with a neighbor, or confirming acreage for a purchase, a licensed surveyor is the only way to get an exact, reliable answer. Treat GIS and old plats as a helpful first pass, not the final word.