Virtual wholesaling question.

[Felix Lilly]

Hey BiggerPockets. I had a question here: I am newly getting into virtual wholesaling and I found a fixer-upper property in Idaho for $110k. If I called the landlord of that property and pitched a deal for around $90k, and he accepted, then I get the contract for his property. After that, I post the contract up on the MLS or Craigslist or wherever and put my new contract up for $120k for example. The difference between $95k and $120k is $25k which means I would pocket $25k. Who is it exactly who sends me the check for the difference?