Donald P. Southwick, of Troy, Michigan, a stockbroker formerly registered with CSSC Brokerage Services, Inc., has been suspended from associating with any Financial Industry Regulatory Authority (FINRA) member in any capacity based upon consenting to findings that he made unsuitable investment recommendations to customers. Letter of Acceptance, Waiver and Consent, No. 2016049789601 (Sept. 29, 2017)….