I used to think that I wanted to build a one-person company and stay very small, but I wasn't able to pull that off. I picked a niche that was too small, and I also didn't have the skills to execute very well (especially in marketing, sales, etc.), so growth has been quite slow. So I've exploring some new features that could increase the number of potential customers, and the new scope is going to be way too much work for one person, so I'm looking forward to building a small team of 5-10 people.
Earnest Capital has been really awesome, and I still think the SEAL is a good deal [3]. My experience has been similar to an accelerator program, but with a bit less pressure. I've had some really helpful calls with mentors, and the weekly update calls are also great for accountability. So I would recommend Earnest if you want to raise some money while building a sustainable company.