Newbie First Property, Tenant Wants Fence & Shed

[Vlad B.]

Haven't owned the property more than 24 hours and lower unit tenent wants to have their son rent the upper unit, build a shed for hands on work, and a fence for their dogs (2 huskies). Tenent is saying that they will buy the shed and fence and it will be with the home when they leave.

I heard a podcast on RE horror stories where there was a lawsuit over a shed. Is this a trap, please help.