<prompt> Human: My family parents relatives have asked me to co-signpurchase a house for them so they can open a nursing home business. They are unable to purchase under their creditname since they already have bad credit due to past history. They will be paying the whole mortgage monthlydown paymentmaintenance property tax - basically everything and only my name will be attached. Other info - 600k house - they will likely put 120k down Question: As a 25 year old - how does this affect my future if I would like to purchase a house in the next 7-8 years? Assuming everything goes well with the nursing home business New to this.. any advice or input will be greatly helpful. Edit: To add - I believe I can opt out of the co-sign if they re-finance in about 4-5 years once the business gets going . To also clarify my question, I am aware that it is unwise to trust family and put my creditname on the line - but my question is more of how it will affect my future home-buying opportunities  <response>: Horrible idea. Youd be completely responsible for payments when they fail to pay. Given their past history thats likely. 