Is this a good sell?

[Mark Cohen]

Hello everyone,

So I am looking to flip a condo - I Had purchased for 40k about a year ago all cash and it has made me about 12% back in a year. Tenant is moving out at the end of the month and I put it on craigslist for 55k and got an offer for 15k down and 1k per month till paid up

It sounds like  a decent offer but am I missing anything?

Mark