an attorney can explain title defects to you in much better and accurate detail but sometime peoples will have interest in the property from the numerous chain of past owners you likely have. sometimes those people are overlookes or the title was't recorded accurately or they never filed paperwork with the registry. dependong on the type of title your buying you could be liable for those damages and may have to pay off that interest. His is where title insurance comes in handy. however, definetly follow up with a MA attorney and at least let him declare a clear title and facilitate tiltle insurance for your property.
I would refer Matt Palumbonof stonehill law.
I just don't to see a new investor get burned and become bitter about investing, it happens too often in our community. If younjave any other questions you shpuld co tavt your agent or if your agent lets you take advice from other agents you can contact me and cc him in your emails.