Lost W-9 Tax form, options?

[Samantha Klein]

I hired a contractor back in October and he did some work for me on multiple properties to the tune of around 4k. I had him fill out a W-9 tax form. I recently had to fire him due to his quality of work lowered and he was unreliable. I can't seem to find the W-9 form I had him fill out. I have his name and address, but not his SSN. What are my options if I cannot locate the W-9? I could ask him to fill it out again but not sure how cooperative he'll be since we did not end our relationship on good terms.