@Johnny Situ - I wrote a blog post awhile back covering this topic https://www.biggerpockets.com/blogs/5926/53215-questions-as-common-as-the-cold---llc
In short, at the beginning an LLC is likely unnecessary because you can A. - cover yourself with an umbrella insurance policy and B. - you can get better financing in your personal name vs through a business lender. If you do transfer the properties from your name to the LLC, you could trigger the due on sale clause in the mortgage. While, this may be rare, it could cause quite a headache if the bank calls the note.
@Kristen R. brings up good points about the umbrella for protection and the single member LLC being a pass through tax entity. While Kristen brings up the S election, you will rarely want to hold rental properties in a C Corp or S Corp.
You will be able to deduct the same expenses (parent's contracted labor) whether you are a sole prop, llc, etc. The only additional deduction an entity can take vs a sole prop is the entity filing fee.
Let me know if you have any additional questions!