@Jassem A.
I was actually looking to try it out with my Father. He is on the edge of retirement age and just had a brain aneurysm that will likely force him into retirement. He owns 2 homes, one is under construction that probably needs $60K to finish, he has taken HELOC's out on his primary residence throughout his life to maintain liquidity in his company, so even though he's been in the home I grew up in for 26 years he still owes 130K. I had an appraiser come out and said that it was worth 200K. If I bought his home for full retail, and had him pay me low rent for the rest of his life, I can write off the losses and he will pay for my down payment thru annual $10K tax-free gifts. He would have 70K to finish construction on his second home which he can sell free and clear for easily 180K. That, along with the sale of his business assets, would be his retirement.
Meanwhile I own a $200K home that I paid no money down on, and I'm taking several hundred dollar loss on rent per month, but I'm taking care of my dad. Plus, I wont have to pay for property management or anything to maintain the home because he always has and will still do repairs himself.