Sign from anywhere
Browser-based signing works on any device without downloads, plug-ins, or app installs. Clients sign from their phone. Agents send from the field. Transactions keep moving without waiting for a desk.
eSign
Documents signed. Deal closed. No paper required.
Constellation1 eSign is a secure, legally compliant electronic signature platform built for real estate transactions. Send contracts, disclosures, and agreement packages from any device while maintaining the audit trails, authentication, and compliance standards brokerages and MLS organizations require.
Purchase Agreement Signature required Sign here
Audit trail attached Entrust AATL certificate
Timestamp, IP, authentication, and document integrity captured.
Secure signing that keeps transactions moving.
Legally compliant by design
Every signed document includes a tamper-evident Entrust AATL certificate, timestamped audit trail, and signer IP tracking. The platform is fully compliant with the ESIGN Act and UETA frameworks governing electronic signatures in the United States.
Built for real estate workflows
Templates for listing agreements, purchase contracts, disclosures, and multi-party transaction packages are designed around real estate office document best-practices.
Built for faster, more reliable transaction workflows
- Reduce signing delays
- Eliminate paper routing bottlenecks
- Standardize document workflows
- Maintain audit-ready transaction records
- Support remote signing from any device
- Deploy securely across agents, offices, and MLS organizations
Three steps from draft to executed.
Upload & Prepare
Upload documents directly or connect cloud storage providers like Box, Dropbox, or Google Drive. Use reusable templates and document packages to prepare transactions quickly and consistently.
Assign & Send
Add recipients, configure signing order, set authentication requirements, and include personalized instructions before sending. Automated notifications and reminders handle ongoing follow-up automatically.
Sign & Archive
Recipients open documents directly in their browser and complete signing sessions without creating an account. Executed documents archive automatically with full audit trails attached.
Features
What’s under the hood
Pending12
Completed48
Expired2
Reusable Templates & Packages
Create reusable templates for listing agreements, disclosure packages, buyer representation contracts, and other recurring transaction documents. Lock field placement for consistency and bundle multiple documents into unified signing packages.
Real-Time Session Dashboard
Track pending signatures, completed sessions, declined documents, expired requests, and failed deliveries from one centralized dashboard. Resend or manage active sessions without restarting the workflow.
Enterprise-Grade Security
256-bit encryption for data in transit and at rest, SOC 2 / SAS 70 Type II certified hosting, redundant storage and nightly backups, plus password, SMS, and Knowledge-Based Authentication options.
Tamper-Evident Signed PDFs
Every completed document includes an Entrust AATL digital certificate that independently validates document integrity and signature authenticity long after execution.
White-Label Branding
Customize signing pages, email templates, and interface branding so clients and agents experience your brokerage or MLS identity throughout the signing process.
API & SSO Integration
Direct API and single sign-on integration options support organizations embedding eSign into transaction management systems, MLS platforms, or internal back-office workflows.
Cloud Storage & Document Access
Executed documents remain accessible online throughout the duration of your active account. Download completed PDFs, audit records, and archived signing sessions at any time.
Expanded Capabilities
- Custom signing instructions and personalized messaging
- Automated email reminders for pending signers
- Box, Dropbox, and Google Drive integration
- Password-protected signing sessions
- Bulk send for high-volume distribution
- Mobile-optimized signing workflows
Used across every role in the transaction
Agents
Send listing agreements, disclosures, and offer documents for signature the same day they are prepared. Track signing progress without repeated follow-up calls or manual coordination.
Transaction Coordinators
Manage multiple active transactions from one dashboard. Templates, packages, and automated reminders reduce document preparation time and repetitive follow-up work.
Brokers & Office Managers
Maintain oversight of transaction activity, standardize document workflows, and ensure audit trails remain attached to every executed agreement.
MLS & Association Administrators
Deploy eSign as a member benefit through branded wholesale licensing programs with organization-level management and recurring non-dues revenue potential.
Compliance
Legally binding. Auditably so.
Constellation1 eSign is fully compliant with the ESIGN Act and UETA frameworks governing electronic signatures in the United States. Every signing session captures the elements required for enforceability, including signer intent, authenticated identity, document integrity, and timestamped audit records.
Faster closings start with the right signature tool.
Whether you're an independent agent replacing a legacy solution or an MLS administrator deploying at scale, get a demo configured to your transaction volume and workflow requirements.