This is my first report sorry if it lack of any info and feel free to mention it if I should add anything in my future reports.
When you buy a contract of employment, the weight of the deed is 1 stone.
If you place the vendor then replace it. The deed now weight 90 stones.
Don't know if it is on purpose but it seem to me that the deed should weight the same before and after.
Been tested on 2 different chars and 10 deeds (was looking for a specific name hehe)
Not a big deal but probably easy to fix too
