Boat Rental Agreement. Ponton Rental Operators Release of Liability, Wavier of Claims, Express Assumption of Risk and Indemnity Agreement.Sign the Texas water sports waiver to participate safely. Release liability and understand the inherent risks involved. This form must be completed prior to boarding. Boat Liability Waiver Rental Agreement. This Liability Waiver Rental Agreement must be filled out and emailed to us before you can pick up your rental boat. Check out our rental waiver form selection for the very best in unique or custom, handmade pieces from our templates shops. Edit, sign, and share boat rental agreement online. No need to install software, just go to DocHub, and sign up instantly and for free.