I have been requested to quote for a SEO project for 2 keywords and they are "constantia villas to rent" "clifton villas to rent" Any idea on how much I should quote?
I would say $500-$600 flat-fee isn't out of the question, especially if you know what you're doing. I'd suggest checking around to some other SEO experts and freelancers to see if they have rates going for a similar service, you never know what you can learn from others' portfolios.
Both keyword are not really competitive.. I think $500 per keyword is more than sufficient to cover your cost.