Wholesaling Property with Mortgage

[Michael Olokode]

Hello, 

I have my first lead on a home and I am looking to wholesale it. I've been reading a lot on wholesaling but I am not completely sure how to move forward on this deal. The seller currently owes 90k on the mortgage and the home is worth $110k. The seller says the home is not in the best shape and needs a lot of cosmetic work (I have not seen the property in person yet). I have done some comps and the ARV seems to be around $120k-130K. My question is how do I go about making a deal when the seller has a mortgage? And are the margins for this property too thin to wholesale?