Adding my self to the deed and refinancing later

[Mike Wiesenhart]

Hello BP friends, I have a question and was hoping somebody in Florida could help me. My sister owns a townhouse and she is moving away. She is in a desirable area and the townhouse is only a couple years old. I ran the numbers and as soon as I got a renter in there it would cash flow from day one! My question is, should I try to buy the house from her in the traditional sense, or should I be added to the deed of the house, wait six months, and then refinance and get her off of the loan. I read that somewhere, but am turning here as I don't remember where I read it or if it is possible. Thanks in advance!