Who can contest a will?
If you consider that you would benefit from an earlier will made by the deceased, or on intestacy (if they did not make an earlier will) then you are able to challenge the will. However, you will need a legal ground for such a challenge and it is important to take specialist advice about this.
In some cases, the deceased may have left property under their will which they promised to you during their lifetime. If so, you may be able to dispute this.
If you consider that you have not been provided for sufficiently when someone has died, whether they had a will or not, you may be eligible to make an Inheritance Act claim.
In some cases there may also be a claim against the professional who drafted the will, if it was intended that you benefit under the will, but you do not.