Putting in offers with private money

[Courtney M.]

I have a private money partner I'm using for some deals. I was reading in J Scott's Flipping book that you have to have all the funds in your name when making an offer or it's not really considered a "cash offer."

Is this true? My assumption was that I could provide proof of funds from my account and my private money partner's account. 

I'm just wondering how others handle this if you're using private money. Like I could put in offers on several houses before they are accepted. My assumption was that the private money lender would provide the money at closing (it's a family member of mine) but it actually sounds like I need to get the cash in my name first.