My partner and I have a client (and friend) interested in some SEO work to rank his local real estate website. We have ranked our own sites successfully, however the problem is we've never even thought about charging for SEO, so we don't really know what to ask for. To give you an idea, we would be ranking his site for approximately 10 keywords, and those 10 keywords bring about 10k local exact per month. Medium difficulty, would take a couple months at the very least to ensure the SEO is quality and won't be penalized. The way we see it, if it helps him make huge sales on properties, it has got to be worth a decent amount, but then again, I don't know what the rate is and what to consider. Can anyone give me some kind of insight? Feel free to PM, thanks.