Most law firms publish their research as reports as a PDF document, portrait orientation. The production benefits of PDF stand out: clear and dramatic photos, ample white space, appealing layouts, compressed size and a widely-accepted format. Some maverick firms, however, chose other modes.
Goulston Storrs Multifamily 2017 created an article, which the firm published in a monthly produced by the same organization that conducted the survey.
Haynes Boone Borrowing 2015 [pg. 4] produced what appears to be a PowerPoint deck. Here is the full-page snippet.
Brodies Firm Housebuilding 2015 published a single page report and Baker McKenzie Brexit 2017 did the same with an infograph.