At least the legal niche has unlimited content possibilities, and it is well searched. There are tons of questionable sources online. My strategy would be to establish top authority with the company's content writers. I'd turn them into stars people love to hear from. For this, there needs to be a SEO strategy in place, and a good SEO expert that is able to prepare topics for them. Then they need to excel in copywriting, and learn things that are not necessarily their filled. Once all that is in place, I'd keep consistency for few years, and eventually annihilate the competition. With this, I'd sleep well knowing that future Algorithms won't bring the site down, and many would give the boost. This would get you all the backlinks you want, without ever asking. Af course, all this is providing that website's UX, credibility and other factors are in place.