First Post! Creating an LLC with brother?

[Account Closed]

My brother and I are looking to buy our first deal. We want to partner on this first one and on some but not all future deals. To give a background he is 22 and about to be earning stable income in the Navy by the end of this year and I am 20 years old playing baseball in college not currently earning income. We want to invest in some deals together and share in equity and profits on those but also have the ability to do deals without one another and not intermingle those future individual investments. Would it be better to create separate entities and partner on specific properties or create one multimember LLC? Is there something specific in an operating agreement that would take