Excellent service listens to your needs performs to your expectations. Highly recommend this agency.

Paid for rush service ($270 - 3 service attempts)) to serve a 30 day notice (over a 6 day period going into a weekend) to evict persons living in a probate estate home. Server stuck a copy of the notice in the door on second attempt because he "saw rubbish" outside and assumed they had moved. With that inexperienced and stupid attempt he basically told the occupants what he was doing. (I was told by the office that he had 10 years with the company) Three attempts means three attempts, lousy or not. The same night my client heard from a third party in communication with the occupants that they had found the notice (not legal service). I emailed the company THAT NIGHT and told them what had happened. The server had gone out the third time the next morning prior to the company contacting him. The entire time of the contract, it took the office HOURS to contact the server (they told ME this) They gave me one more service attempt because they had admitted they screwed up. The server saw lights on and heard voices inside but (surprise) they wouldn't open the door. For the last three days of the service period, I emailed the company for status without response approximately 10 times. When I called, they told me that they received the emails, and were waiting for their server to respond. I've been practicing law 30 years and have used many companies for service of process. This company had no plan on how you serve an individual, made fatal errors, and had poor communication both internally and with the client. I wouldn't use MSI to serve a notice to a child's teacher that they were sick that day, let alone anything important. Without any doubt among the worst in the Chicago area. Stay away and don't waste your money. ----- Regarding the owner's response below, it is utter nonsense. I sent these guys to serve notice on a vacant house for $270? The owner is lying. I told them three people lived there. They were sent there to serve notice, not to make a judgment call on occupancy? Oh, and do people ever leave a house? Their server left a notice in the door, effectively rendering any future attempts futile. The woman in their office admitted it, that's why they gave me an extra attempt. It wasn't a "courtesy" attemp. They screwed up. You have a weekend job and you don't communicate with the client? That's poor business practice. As far a suggestions. YOU MADE NONE except a stakeout which given your track record would be a waste of time and money.. I emailed 6 times Monday morning for status, and called when you didn't answer. Hey man. I know it's painful to get a bad review. But you should suck it up and try to get better instead of lying on Yelp. You have a poorly run business. read more

DO NOT USE THIS SERVICE. It is absolutely a scam. Perry (writing all the replies) will take your money and stop replying to all communications. I highly suggest you go to a legitimate agency that will actually provide you with the services you need. I wish I listened to the negative comments here before I reached out to them and got robbed :( read more

I highly recommend MSI Detective Services! The company I work for had been trying to serve an opposing party for 1 month, but he kept bouncing from state to state. When we learned the opposing party was going to be in Chicago, we found MSI Detective Services online and thanks to the other 5 star reviews on Yelp, we reached out to the company to help us serve him. With less than 24 hours' notice, Nerdisa and Pedro were able to serve the opposing party. I also appreciated that I was able to email the documents that needed to be served and that they printed them. read more

I wish I had used another process server. The service MSI did was invalid and my documents were not served properly. Avoid unless you want to lose time and money. read more

The investigator was really sympathetic with my situation, very knowledgeable too. He was honest about what he was able to do, and went out of his way to search and investigate the issue I brought for free and gave me time to think about how I would like to move forward. Thank you so much, may God bless you for taking time to listen and help me. read more

When you need things done urgently and professionally, MSI is the place to go. They take your case personal and tirelessly work round the clock to ensure that your work os done. Thank you Nerdisa and Pedro. read more

I must say I was very skeptical about hiring a private investigator, and I wasn't sure what I was getting myself into. However the investigator that worked on my case was very kind and professional. She guided me step by step through the findings and I must say I can finally sleep at night! Thanks MSI! read more

My lawyer recommended me to MSI detective services for personal issues I was having. I must say they really surprised me, the detectives were very professional and worked in a timely manner. Highly recommend them. read more

This Agency is great! I highly recommend MSI Detective Services. I have hired them for several assignments over the past 5 years. They were wonderfully successful with each and every one; always quick and comprehensive. MSI is always professional and thorough yet I also felt cared about personally. read more

Highly recommend MSI detective services. The detectives make you feel very welcomed with any issues you may come with and are very eager to help you however they can. read more

Don't waste your money or time with MSI! I hired them to do a simple surveillance and they could not handle that. When I called to get an explanation of how they failed, I was given a few different excuses. And I was told "We've been in business for 50 years!" I don't see how they have been in business more than 50 minutes. Stay away! Seriously! read more

Amazing work and great people to work with. MSI is a team of professionals that get the job done and most of all they care about their clients. read more

Excellent service from MSI. My attorney recommended them at first. I came with some asceticism when I first saw the bad reviews. But after reading them I thought that it did not make sense. So I called them since they have been in business for so long. A business does not survive if they suck so I figured something did not make sense. Plus my attorney assured me that they know what they are doing. I flat out asked them about the bad reviews. One they said they honestly did not know the case. Possibly a competitor they claimed. They could not give me all the details about the other case due to confidentiality concerns. But they did share details about a woman who thought there were sounds coming from her vents due to the NSA probe. They did the case after she left the key with a neighbor. Then swept the place using hi-tech tools, the same that NSA uses according to the owner. After the woman returned she was unhappy because they found nothing. I was explained that they only find bugs about 5% of the time. The reason I am writing this review is because I am pissed that people can discredit a good business. I was treated professionally and MSI did 2 great things for me. 1. They did a surveillance and I caught my cheating girlfriend involved with her boss. They provided video evidence and reported to me quickly. 2. Then they were able to find a monitoring software that this Bee Itch placed on my phone. They scanned my phone with software and found it while I waited. I walked out of there with great confidence about this company. And sorry that they have 2 bogus 1 star reviews. Before I left I was shown a book of letters and accolades from attorneys they received for various cases. I am a happy customer who wants justice from Yelp. Thanks for the opportunity to speak my mind. read more