Snow removal

[Tushar Shah]

ThanksHello,  

I have question regards removal of the snow at the rental property. 

Uhh am trying to help one of my tenant by giving him some jobs around the property such as landscaping and snow removal.

that way i usually give him discounts on his rent.  Its help both side. I am getting good deal on taking care of my property other end he will have to pay less rent.

I am wondering is this a good idea or not?  Should I get some kind of sign form from them so I don't need worry regards liability prospective? 

Please help. Thanks in advance.