Connecting your LMS lets you pull student submissions into LawGrader and push grades and report PDFs back out, so grading fits into the workflow you already have. You connect once, from Settings, then link individual assignments as you go.
For a side-by-side of what each LMS can and cannot do, see Which LMS features work.
Canvas
In Settings, choose to connect Canvas and enter your Canvas domain and an access token (or sign in with Canvas if your school has it set up). Once connected, you can create a class from a Canvas course, or link an existing class, and import assignments and rosters.
Moodle
Connect Moodle with your site URL and a web-services token. Moodle admins control which web-service functions a token can use, so if something is missing, LawGrader tells you exactly which functions to enable. After that, browse your courses, link an assignment, and import its submissions.
Blackboard
Connect Blackboard (Anthology Learn) with the app credentials your administrator registers. You can then browse courses, link an assignment to a gradebook column, and push grades back to it.
Linking an assignment
Connecting is account-wide; linking is per assignment. On an assignment, use the Import option for your LMS to pick the matching course and assignment. Grades you release then flow back automatically.