what is the best way to form an investment group with friends

[Vincent Bess]

I had a question regarding multiple investor.me and three other friends are looking to purchase and rent out a few investment properties in the coming months. I would everyone to give me there opinion on these question below.

Legal wise what would be the best way to make sure everyone is help accountable for the investment properties? 

Can there be multi people listed on one mortgage ? 

Should we start off by creating an LLC or should we just purchase each property under our personal credit ?

As far as filing taxes at the end of the year how would this affect us?