Freelance Contractor VS Web Development firms -

best way to get your site made?
What is the best way to get a complete site with database created?

My primary goal is to get it done CORRECTLY, but like everyone else I do have a budget. Are local development firms the way to go for advanced projects with large databases, or can freelancers handle it? Should I avoid freelancers for such a big important project or will they do the exact same thing but for cheaper?
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