How do other users send their Owner Service Agreements with an online signature feature?

Does anyone have any advice for the best software to use for obtaining signatures in an online doc format? I know I can use OwnerRez for VRA's but they've said I can't use it for an Owner Contract.

We are using Jotforms.  I know users have been requesting an owner contract option for more than 4 years now, I wonder if there is any progress?