Use my money or someone elses in a flip

[Steve S.]

Would you use a hard money lender or your own cash to pay for a flip (property + rehab)

I can see advantages to both.

Using your own money you save on the cost of borrowing it and the fees and such hassle of getting it. This seems that the risk factor is alot higher.

Using someone elses money, you pay more to have it but more of your own cash stays in your pocket. This seems that the risk factor may be lower.

What are your thoughts on either.