Raising Investment Captial Legal Guildlines

[Justin Morris]

I am planning on bring in two family members to invest in my first investment property. One lives outside the U.S and the other lives in a different state. i just read this thread http://www.biggerpockets.com/forums/50/topics/58856-financing-investment-deals-important-read
Now I have questions about doing this, do I need to be concerned with legal issues when getting money from my family for this? I'm a bit confused and don't understand what is the difference between this and borrowing money from them for personal reasons? For instance if they leant me the down payment for my own personal residence is that different from them lending a down payment for an investment property?