What is the best exit option for angel/seed investor?

I've discussed ideas with hundreds of startups, I've been involved in about a dozen startups, my business is at $1M+ revenue. The bad news is, there is no good way to protect ideas. The good news is, in the vast majority of cases you don't really need to. If you're talking to people about your idea, you could ask them to sign an NDA ("Non Disclosure Agreement"), but NDAs are notoriously hard to enforce, and a lot of experienced startup people wouldn't sign them. For example, if you asked me to sign an NDA before we discussed your Idea, I'd tell you "thanks, but no thanks". This is probably the right place though to give the FriendDA an honorable mention: http://friendda.org/. Generally, I'd like to encourage you to share your Ideas freely. Even though telling people an idea is not completely without risk, generally the rewards from open discussions greatly outweigh the risks. Most startups fail because they build something nobody wants. Talking to people early, especially people who are the intended users/customers for your idea can be a great way to protect yourself from that risk, which is considerably higher than the risk of someone taking off with your idea. Another general note, is that while ideas matter, I would generally advise you to get into startup for which you can generate a lot of value beyond the idea. One indicator for a good match between a founder and a startup is the answer to the question: "why is that founder uniquely positioned to execute the idea well". The best way to protect yourself from competition is to build a product that other people would have a hard time building, even if they had 'the idea'. These are usually startups which contain lots of hard challenges on the way from the idea to the business, and if you can convincingly explain why you can probably solve those challenges while others would have a hard time, you're on the right path. If you have any further questions, I'd be happy to set up a call. Good luck.

The ideal way would be to hire the engineer while the project is still under development. You and the engineer should follow up with the outsourced partner in the process. This will give hold to the engineer and later more staff can be trained in upgrading or follow on versions of the product/service.

Better than a cover letter is to actually proactively DO something to help them. It'll show them not only that you've researched them, but you're passionate about the startup and worth bringing on. A man got a job at Square early on for just making them a marketing video on his own (back before they had one). Since you're a web designer, design a stellar 1-pager that's targeting their message to a particular niche. Something they could use on social media or something. If they're like most startups, they're not interested in reading cover letters. They're interested in passionate individuals who can add value to the organization.

Stop thinking you don't have the skills to do something. You can learn anything if you decide to, but assuming up front that you can't (forever) is dangerous. my2cents

Back when I started LinkedIn wasn't as huge as it is now. I wish it was. I didn't have a large network and those networking sessions NEVER brought me any clients. I used to go to all sorts of them hoping to get clients. There were a couple of nibbles here and there, but never anything serious. The only thing that helped was reaching out DIRECTLY to people in my target market. That meant cold calls and cold emails. I'd sell myself while thinking about their needs. Once I got a few bites I'd build good rapport by keeping in touch, asking questions, repeating back what they were saying so that they knew I was on the same page and kept my promises. If I said I'd call them back next Tuesday at 2:15 I'd do so. Eventually I built trust with them without having a network, or an insane amount of experience. Oh and the most important thing about consulting is to LISTEN. When those first clients notice that you're truly listening and you're not selling the cookie cutter solutions everyone else is trying to sell them that's when you got them hooked. You start to understand their problems, fears, and see through their eyes and not just yours. A network will help, but in the beginning just good 'ol salesmanship will get the ball rolling.