Creative Financing with 2nd Mortgage?

[Adam V.]

Hi everyone! Longtime lurker, first time poster. I have an extremely motivated seller who holds 2 mortgages on a SFR and owes a total of ~65k between both notes and are asking 75k. I am confident I can get 80-85k in 3-5 years. I can also get about $1300/month rent in this area. I don't know the sellers current total payment yet but have an idea its around $725/month. I'm approved for a traditional 20% down loan @ 4.25% but wanted to see if I could do anything creative like a Subject To? With a second mortgage in play i'm not sure if any creative financing makes sense? My traditional offer would top out at 70k.. taxes are roughly $3800. Property is in good shape and needs nothing to start renting.

Thanks for your thoughts!