Modis Recruitment Scam Jacksonville Florida

This company contacted me via email about a position close to where I am living.  After several phone interviews, they informed me that I was offered the job.  I only needed to go through drug testing and filled out some paperwork.  I did everything they asked.  When the start date came close, they kept silent.  I had to email them to ask what was going on and they sent me an I-9 form, asking a family member of mine to sign the I-9 form with the reason that the representative of Modis, Jonathan Evans, could not be there to sign the I-9 form. I did and reverted the information to them.  After that, regardless of a number of emails from me inquiring about the start date and whether they need any information, they have ignored me and did not reply.  

My concern is this company may be running a recruitment scam by collecting SSN and other confidential information from job seekers by falsely telling them that they got a job.  I also read here that other job seekers were also put in the same situation where they took advantage of our confidential information and ran away.  This, I think, is a pattern of dishonest and fraudulent practice.