Financing with Cash Advance

[Jonathan Schooley]

My credit cards usually offer the opportunity to transfer balances or take cash advances with 0% APR for 12-18 months for a one-time fee of 1-3% depending on the current offer. How come I never hear of anyone using this to fund rehabs or deals? It could easily free up about $40-50K in cash based on my credit lines. I just wasn't sure if there is something I am missing with doing this or any disadvantages. Thanks!