Legal Scholarship NetworkOnline resource composed of a number of specialized research networks in different disciplines, including law via the Legal Scholarship Network (LSN). SSRN does not appear to have a search function for just its legal content. On SSRN's LSN homepage, there is a link to "Search" at the top center of the page. However, when you click on this link, this brings you to a "Search eLibrary" page that searches all of SSRN, not just LSN. There is no full text searching, only field searching: author, title, abstract, keywords, and date.
You can also browse SSRN, but you have to drill down to narrow it to the legal content within LSN. You can click the + sign next to "Legal Scholarship Network" to see the different subsets. Many of these subsets are groupings of working papers from different institutions. However, this browsing portion also displays "LSN Subject Matter eJournals." Although called eJournals, each one is effectively a more narrow legal subject database. Clicking any one of these will bring up a "Search Within Results" search box. "Search Within Results" will search title, author, abstract body, and keywords fields, but not full text apparently.