OSL Extraction
When you upload an Ontario Standard Lease, our AI extracts key information automatically. This page explains what gets extracted and how.
Extracted Fields
Landlord Information
| Field | Source in OSL |
|---|---|
| Name | Section 1 - Landlord(s) |
| Address | Section 1 - Address for Giving Notices |
| Section 1 - Email | |
| Phone | Section 1 - Phone |
Tenant Information
| Field | Source in OSL |
|---|---|
| Name(s) | Section 2 - Tenant(s) |
| Section 2 - Email | |
| Phone | Section 2 - Phone |
Property Information
| Field | Source in OSL |
|---|---|
| Address | Section 3 - Rental Unit |
| Unit Number | Section 3 - Unit (if applicable) |
| Parking | Section 3 - Parking Space |
Lease Terms
| Field | Source in OSL |
|---|---|
| Start Date | Section 4 - Tenancy Start Date |
| End Date | Section 4 - End Date (fixed-term) |
| Lease Type | Section 4 - Fixed-term or Month-to-month |
| Base Rent | Section 5 - Lawful Rent |
| Rent Due Date | Section 5 - Due Date |
| Payment Method | Section 5 - Payment Method |
Services and Utilities
| Field | Source in OSL |
|---|---|
| Electricity | Section 6 |
| Heat | Section 6 |
| Water | Section 6 |
| Internet | Section 6 |
| Parking | Section 6 |
| Air Conditioning | Section 6 |
Deposits
| Field | Source in OSL |
|---|---|
| Rent Deposit | Section 7 |
| Key Deposit | Section 7 |
Extraction Technology
Our extraction uses:
- PDF Text Parsing - For text-based PDFs
- OCR (Optical Character Recognition) - For scanned documents
- AI Understanding - To map fields correctly
Confidence Scores
Each extracted field has a confidence score:
High Confidence (90-100%)
- Field clearly readable
- Standard format recognized
- Likely correct
Medium Confidence (70-89%)
- Field readable but unusual format
- Some ambiguity
- Review recommended
Low Confidence (Below 70%)
- Field difficult to read
- Non-standard format
- Manual verification required
Handling Edge Cases
Handwritten Text
- Printed text extracts best
- Handwritten may need OCR
- Very poor handwriting may fail
Multiple Tenants
- All tenant names are extracted
- Each becomes a separate tenant record
- All linked to the same lease
Non-Standard Formats
If your OSL has been modified:
- Core fields usually still extract
- Custom additions may be missed
- Review carefully and add manually
Comparing to Original
After extraction, you can compare:
- View extracted data
- Click "View Original"
- Side-by-side comparison
- Correct any discrepancies
Improving Extraction
Before Uploading
- Use clean, high-quality scans
- Ensure all pages included
- 300 DPI or higher recommended
After Uploading
- Review all fields
- Check medium/low confidence items
- Correct errors before confirming
Data Validation
The system validates extracted data:
- Dates are valid
- Rent amount is reasonable
- Postal codes are valid format
- Email addresses are valid format
Invalid data is flagged for review.