Confused about mortgages....

[Joseph Galifi]

So I am new to flipping houses, however I do have a buyer( Also a long time friend) who has around 300k in cash and is approved for a 900k loan. I am writing up my letter of intent and I want to put 2 choices of payment. One is up to 75% with seller financing and the other is up to 65% all cash. I guess my question is where does this mortgage come in, can i use it as all cash or towards the seller financing... lets take a different approach say i were to just buy a house to live in and I pay with a mortgage, does the seller get the full amount of money from the bank or monthly payments?