It’s a similar scenario…the only real difference is that it was UMass Boston instead of Lowell. You will see that the advice was similar.
The other poster is also a MechE major, so forgive my confusion.
Are you asking why transferring twice would be a bad idea? There are many, many reasons why it’s a bad idea, but here would be one: While it is true that MBBs have certain target schools, you seem to not appreciate what it takes to get an interview with them. There are many, many students at these target schools each who don’t even get past the resume screen. These firms want to see an interesting background, recruit a diversity of thinking, and find analysts who have distinguished themselves. It’s very difficult to get traction, make an impact, and really find a niche if you are at 3 different schools in 3 or 4 years.