says April 15th is also the deadline for your business PPT returns. ALL LLCs, Incs, LLPs, LPs, REITs, Business Trusts must file this annual return in Maryland. Failure to file will have your business DISSOLVED! .dat.state.md.us/sdatweb/personal.html This is the purpose of the green or blue papers Maryland mailed you. Contact McCo to help you file...