subject to, lease option, or wholesale?

[Rashon Goode]

Hi im 19 and currently living in tampa florida. I recieved a call from a woman who was somewhat interested in selling her property . here are the details.

The home is worth 60,000 and has a mortgage of 55,000. her step daughter rents the home for 435 a month. this property could be rented for more. the owner is willing to sell for 35,000. houses in the area sell for 60,000 - 70,000 . which strategy would be best? A subject to, lease option or wholesale. the repairs may be too much for an investor to consider buying because that would make it an upside down house.