I saw a project and on that project I did not see the team and DEV from the project. however they use Escrow with good positive trust, can it be a determinant that the project will not be scam?
Basically, yes. Projects in order to figure out if SCAM or not needs to be escrowed by one of the best escrow here on bitcointalk just like bl4nkcode which is very well known as a very trusted escrow.