Do I really need a LLC for my investment properties?

Essentially it would work something like this…1) My LLC purchases the property 2) He will only charge me COST on the labor and materials (no profit or markups) which will save me around 30% on regular contract figure he gives me in my market which is very expensive 3) He will also make 300k of his own liquidity available to inject into the deal (I will put some of my own cash in and get a HML loan for the rest).

Would there be any tax advantages for me to create an LLC for lawn care and paying said LLC a fair market wage for lawn care? 

@Al SalousIts common to may a LLC for each flip. 

.- 4 partners are equal members in the LLC.- 2/4 partners are on the loan.

I just received my New York state Articles of Organization for my LLC.

It's going to be a standard LLC, not a fund, just for this one deal.

Primarily this was due to the fact that I didn't have the right pieces in place (LLC/Lender/GC/Broker/etc). 

I believe homeowners and investors alike have walked away from more...yes, since you are investing with a non-spousal partner you should form a company of some sort, most would use a LLC. 

Do you have a master LLC or LP that oversees managing your portfolio?