Slight Blemish on Tenant Application - What to do?

[Matthew Farmer]

Hi - I have a couple for a property that has a slight blemish on their application. Based on the below, would you rent to them? 

1. Both Credit Scores above 600

2. Employment History Stable - Both have been at recent jobs + 2 years and before that at same job for 15 years. One individual is the primary bread winner and is in more of "commission" heavy position. If that were to go away, they'd really have to claw together rent.

3. Gross Income to Rent 4.2x 

4. Net Income [After taxes & other W-2 Deductions] to Rent: ~2.8x

5. No Evictions & Clean Background

6. Red Flag is Prior Rental Reference where they've been a tenant for 3 years. Throughout 1 year they were consistently late but always made payment that month. They have not had a late payment in the last 1.5 years.