ANSWER:

Of course you are totally sinful for signing on such papers and a partner in Allah’s curse to him and to you, equally! 

My brother wanted to buy a house with mortgage, and since he had bad credit score he asked if i would become co-borrower. I agreed considring with my credit score it would reduce his interest rate on the mortgage. Note, i do not own the house, and i do not pay mortgages rather its fully his and i am just a co-borrower on paper. My question is whether am i sinful in helping my brother buy a mortgage

Halal/Haram Matters, Islamic economy, Riba |