<prompt> Human: Im renting a house and have about 9.5 months left on the lease. At the end of the lease, Id like to buy a house not this rental house. I have some money saved for a down payment that is sitting in my savings account earning .3. Im considering making an offer to the landlord and I wanted your advice. Im considering paying all the rent upfront 9.5 rent at one time in exchange for a 5 discount. To me, this is like earning a guaranteed 5 on my money. Thoughts?EDIT: Thank you all for your thoughts on this question. It appears that my math is solid, but there is some risk that I didnt consider. This is why I love reddit. This discussion has really helped me consider this investment from many additional angles that I wouldnt have considered before. Thanks reddit.  <response>: I wouldnt because what if something happens to the apartment. Like what if your upstairs neighbor floods your apartment the landlord decides to not fix it in a timely manner, what if your apartment building gets damaged and you can no longer live there. Your rent is something you can hold back, dont give up the only leverage you have. 