1099 from a parking tenant?

[Johann Jells]

I have a new one, at least for me. I had a parking vacancy, and there was a new development across the street with no parking, so thinking I could really jack the price I contacted the realtor, and he jumped at it.  Then he wanted a lease, which we've never done, informally renting to tenants and neighbors. OK, sure. Now they're wanting to pay it one year in advance as part of closing a unit, and want a W-9 from me!  This surely means a 1099. Seems like a red flag to the IRS, one 1099 after 20 years of none.  I'm ready to cancel the deal, a few extra buck is not worth IRS scrutiny. Thoughts?