*This feature is not available in all plans. To see the different plans or make changes to your plan, go to the Plan & Billing tab in your account.
You sure can! You are able to add a Second Signer to your contracts to allow for another signature.
How to add a second signature to your contract:
1) Create a contract from an existing template
2) Add a Linked Contact to your contract
3) Click the Add Second Signer button
4) Complete and save your contract draft
5) Choose to send your contract to both clients