QUOTE=army judge;202298]Before your aunt does anything, she'd be wise to fund her own survey.
Once she knows for sure if the neighbor is correct, discussions can begin as to what the best solution to the matter should be.
If it is true, the neighbor may be able to make a claim to the property...
"A neighbor is saying he had his property surveyed and says my aunts buildings and fence are on his property even though they have lived there for 30 yrs and paid taxes the whole time. This is in Iowa do they have to cede the land back to him? Thanks"