Hi Angela (I kind of want to call you Georgia Peach lol!). Welcome to BP.
It would be hard to start flipping without any money. Even if you found a hard money/private lender, being it is your first deal, they're gonna want you to have some "skin in the game." You could possibly try to find a partner. Or, you could start out by wholesaling, which can be done with little money (I did not say none, as you'll still have some expenses, like gas, basic marketing, small amount of earnest money deposit, etc.). You should research both thoroughly on this forum before proceeding. Sharon Vornholt & Danny Johnson are two of the top wholesalers here. J Scott just wrote a great book on flipping too.
On the note deal, I'm somewhat confused. The house was bought for $192K in 2011 - what is the amount of the note? If the mortgage holder (which I assume is a private individual, not an institutional lender) only wants you to pay off the face value of the note, why would you want to pay the appraised value of $250K?
Instead, you should be buying the note for a discount, since the mortgage holder is in a bind and needs out. Now you have equity with the difference between the two (appraised value and note purchase price). But you say you don't have any start up funds, so not sure how you plan on accomplishing this. But if you find the money, then yes, you can seller finance the note to the tenant collaterized w/ the home. Being that her credit isn't great though, make sure you charge a premium interest rate and she needs to put something down too. Again, you should research this thoroughly before proceeding. There are mortgage servicing companies that she can make her payment to that can help you with some of the formalities.
Please let me know if I've misunderstood any of the details. At a minimum, knowing the pay off amount on the note would be helpful so others can chime in and continue giving you ideas/advice. Hope this helps some.