It is not a big deal.
SIRG changed accounting firms and needs FINRA approval of their new accounting firm. I doubt there will be any problem in getting their new accounting firm approved due to their reputation.
Marcum LLP is one of the largest independent public accounting and advisory services firms in the nation.
Ranked among the top 15 firms in the nation, Marcum offers the resources of more than 1,100 professionals, including more than 150 partners, in 23 offices throughout New York, New Jersey, Massachusetts, Connecticut, Pennsylvania, California, Florida, Grand Cayman, China, Hong Kong and Shanghai. The Firm's presence runs deep with full service offices strategically located in major business markets.
Established in 1951, Marcum is a leader with an outstanding reputation at the national and regional levels. Marcum is ranked as one of the largest firms in the New York metropolitan area (Crain's New York Business), the greater Philadelphia region (Philadelphia Business Journal), the New England region (Boston Business Journal) and the Southeast (South Florida Business Journal).
