To sign for an LLC without exposing yourself personally, write the company’s full legal name above your signature, put “By:” on the signature line, print your name beneath it, and add your title in the company. That format shows the LLC is the party to the contract and you are signing as its agent. Everything else about how to sign for an LLC — authority, resolutions, electronic signatures — builds on getting those four elements right.
The Signature Block That Protects You
A properly formatted block looks like this:
[Full Legal Name of LLC]
By: ___________________________
Name: [Your Printed Name]
Title: [Your Role, e.g., Managing Member]
Each line does specific work:
- Use the exact legal name on file with your state’s Secretary of State, including the “LLC” or “L.L.C.” suffix. A trade name or informal abbreviation is not enough. If the state filing reads “Greenfield Properties, LLC,” signing as “Greenfield Properties” or “Greenfield LLC” creates ambiguity about which entity is bound.
- The “By:” line signals that the signature below belongs to an agent, not an individual contracting party. Without it, the document can read as a personal commitment.
- Print your full legal name beneath or beside the signature so there is no question about who signed.
- List your role as it appears in your operating agreement: Managing Member, Manager, President, or whatever matches. This line is what keeps a court from treating you as personally liable.
The title line is where most problems start. If your operating agreement names you a “Manager” but you sign as “President,” a lender or title company doing due diligence will flag the mismatch. If no title appears at all, the signature can be read as a personal guarantee. Keep the entity’s name consistent across every page of a multi-page agreement, too. If page one says “Greenfield Properties, LLC” and the signature page says “Greenfield Properties, Limited Liability Company,” you have introduced a discrepancy that may require a state amendment filing to clean up, typically costing between $25 and $100 depending on the jurisdiction.
Confirming You Have Authority to Sign
Formatting is only half the job. The other half is making sure you actually have the power to bind the LLC. That depends on how the company is structured.
In a member-managed LLC, every member acts as an agent of the company and can sign agreements in the ordinary course of business. In a manager-managed LLC, only the designated managers hold that power, and regular members cannot bind the company on their own. Most states follow this framework, which comes from the Revised Uniform Limited Liability Company Act.
Your operating agreement can tighten these defaults. Many LLCs require approval from all members before anyone commits the business to a lease, a loan, a sale of major assets, or any contract above a set dollar amount. The operating agreement might also grant signing authority to specific officers like a president or treasurer who are not themselves members. If someone signs beyond the authority the operating agreement allows, the contract may not bind the company at all, and the other side can sue the individual signer under the implied warranty of authority — a rule holding that anyone who claims to act for a company guarantees they actually have permission to do so.
Resolutions for Major Transactions
Banks, lenders, and government agencies often want proof that the signer has permission. For LLCs, that proof is a member or manager resolution. Unlike a corporation’s board resolution, an LLC’s governing body votes to authorize a specific person to execute a specific transaction. The Small Business Administration publishes a model resolution form that lenders use when processing business loans.1U.S. Small Business Administration. Model Corporate Resolution for SBA Commitment A workable resolution identifies the authorized person by name and title, describes the transaction, and is signed by a different member or officer than the person being authorized.
How a Bad Signature Creates Personal Liability
The point of running a business through an LLC is to keep the company’s obligations separate from your own assets. A careless signature can erase that line.
Courts in several states have held that when a person signs a contract without clearly disclosing they act on behalf of a named entity, the signer can be personally liable for the company’s obligations. Using a trade name or “doing business as” name instead of the LLC’s legal name has been treated as a failure to disclose the principal, which puts the signer on the hook.
Including the LLC’s name is not always enough on its own. If your name and title appear in a way that reads more like personal identification than a representative designation, some courts treat the title as merely describing who you are rather than the capacity in which you signed. A Texas court has held that officers signing for an entity can become personally liable where the contract contains language making the signatory responsible, even when the person intended to sign only in a representative role. New York courts take a narrower approach, requiring “clear and explicit evidence” that the agent meant to assume personal liability, but the risk exists everywhere.
Read the full agreement before signing, especially any clause referencing “the undersigned” or “the signatory.” Those terms can pull you in personally regardless of how clean your signature block looks.
When Another Entity Manages Your LLC
If the manager of your LLC is itself a company, the signature block needs an added layer showing the chain of authority down to the human holding the pen:
[Contracting LLC Name]
By: [Manager Entity Name], its Manager
By: ___________________________
Name: [Individual’s Printed Name]
Title: [Individual’s Role in Manager Entity]
So if Greenfield Properties, LLC is managed by Greenfield Management, Inc., and the president of the management company signs, the block reads:
Greenfield Properties, LLC
By: Greenfield Management, Inc., its Manager
By: ___________________________
Name: Jane Torres
Title: President of Greenfield Management, Inc.
Each link in the chain needs its own authorization. Jane Torres must have authority to sign for Greenfield Management, Inc., and Greenfield Management must have authority to act as manager of Greenfield Properties, LLC. A missing link can void the agreement or leave an individual exposed. For layered structures, an incumbency certificate confirming who holds signing authority in each entity can satisfy the other side’s due diligence.
Electronic Signatures and When Wet Ink Is Still Required
Federal law gives electronic signatures the same legal weight as handwritten ones for most business contracts. The Electronic Signatures in Global and National Commerce Act prevents a contract from being invalidated solely because it was signed electronically.2Office of the Law Revision Counsel. 15 USC Ch. 96 – Electronic Signatures in Global and National Commerce Platforms that provide an audit trail with signer identity, timestamp, and IP address are standard for vendor contracts, service agreements, and commercial leases.
The ESIGN Act carves out several categories. Wills and testamentary trusts, adoption and divorce documents, and certain notices governed by the Uniform Commercial Code all fall outside its scope.3Office of the Law Revision Counsel. 15 USC 7003 – Specific Exceptions Cancellation notices for utility services, health insurance, and life insurance are excluded, along with product recall notices and documents accompanying hazardous materials. These still need a physical signature.
Real estate transactions deserve separate attention. Deeds, mortgages, and many real property filings still require a notarized wet ink signature in most states. The notary confirms the signer’s identity and verifies they are signing as an agent of the LLC rather than as an individual. Some states permit remote online notarization through a video call, but the rules vary. If your LLC is closing on real estate, confirm the county recorder’s specific requirements before signing day.