Ok thank you for the additional information. Under Mississippi law a person has a claim of right to title in property by adverse possession if they have occupied the property for a period of 10 years, that is be in possession adverse to the real owner of interest in the property.
§ 15-1-13. Ten years' adverse possession gives title; exceptions.
(1) Ten (10) years' actual adverse possession by any person claiming to be the owner for that time of any land, uninterruptedly continued for ten (10) years by occupancy, descent, conveyance, or otherwise, in whatever way such occupancy may have commenced or continued, shall vest in every actual occupant or possessor of such land a full and complete title, saving to persons under the disability of minority or unsoundness of mind the right to sue within ten (10) years after the removal of such disability, as provided in Section 15-1-7. However, the saving in favor of persons under disability of unsoundness of mind shall never extend longer than thirty-one (31) years.
(2) For claims of adverse possession not matured as of July 1, 1998, the provisions of subsection (1) shall not apply to a landowner upon whose property a fence or driveway has been built who files with the chancery clerk within the ten (10) years required by this section a written notice that such fence or driveway is built without the permission of the landowner. Failure to file such notice shall not create any inference that property has been adversely possessed. The notice shall be filed in the land records by the chancery clerk and shall describe the property where said fence or driveway is constructed. " source: http://law.justia.com/codes/mississippi/2010/title-15/1/15-1-13
While it appears you have satisfied this requirement the property does not automatically become the possessors interest. An adverse claim must be petitioned to the court and an order granting you quiet title must then be granted by the court upon you showing you have satisfied the requirements to claim the property by adverse possession.
It is difficult to estimate costs associated with these types of claims. As you can imagine, these cases can be highly contested. I would anticipate a few thousand dollars by the time the petition is drafted, filed and argued in front of the court.
It would be best to retain a local attorney, as the arguments for adverse possession are technical and judges are reluctant to grant possession unless it is clearly presented to them that the elements of the claim are satisfied.
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