Beware of "ghost" preparers who don’t sign tax returns 

https://www.irs.gov/newsroom/beware-o

​ https://accountinginstruction.info/

​WASHINGTON — The Internal Revenue Service reminds taxpayers to avoid "ghost" tax return preparers whose refusal to sign returns can cause a frightening array of problems. It is important to file a valid, accurate tax return because the taxpayer is ultimately responsible for it.