Mods: Please move if this section is inappropriate for my post. Thanks. So here's the story: I have (had) an offline client who wanted a new website built and SEO for various terms. There was never a signed paper agreement, just emails talking about what keywords to target, how much I would charge, etc. So I made him a new website, performed on-page SEO, and prepared my backlink strategy. My first invoice went out in October, and I waited 30 days before sending a reminder email. He didn't reply, so I sent another reminder email. Again he would not bring up the issue directly, instead he would just talk about how he's not happy with the SEO progress, etc. So I addressed his concerns, told him I would be happy to share my SEO strategy, and results won't happen in just a month or two. He didn't complain further, but still no cheque. So finally I cornered him about it and he said the cheque would be expedited, but by the way, I want this and this fixed. Ok, fine. But this time I didn't do extra work (I ain't no dummy). Instead I waited a week for this cheque -- nothing! So tonight was the last straw for me. I put his old website back and resigned in a polite email. Whoa boy, that opened up a can of fun! He retorted back with threats of legal action, and saying I invaded "his" website unlawfully, and the website is rightfully his. But he hasn't paid me a dime... What would you folks do in my shoes?