<prompt> Human: I am considering buying a 4 bedrooms house and renting out 3 bedrooms to trusted friends andor acquaintances or even strangers if I must. Ill charge like 500-550 for each room. That means 1500-1650 in monthly renter income. Im looking at houses sort of fixer-uppers around 90,000. I have a very nice credit score it was 775 when I checked it last. Looking at rates I could get around 4 on a 30 year fixed. I have no co-signer though, so Im not even sure I could get the loan. Im doing a Chase pre-approval right now to find out. That works out to about 425 a month for my mortgage payment. Of course with insurance and taxes and everything it would be more like 700 a month. Add in utilities for 4 people that would be about 400 a month, maybe 500. Cable and internet say 200 for the premium stuff. Altogether thats only 1400 a month. Ive got 100-250 leftover for upkeep. This is just a rough estimate of course but can anyone give me some suggestions or advice on this idea? Im 25, single, first time homebuyer, but I gross only 25,000 a year. Thank you for your advice beforehand!  <response>: You should buy this house assuming that you will be the only one living there. If you cant afford the payments yourself, you shouldnt buy it. With that said, utilities for 4 people will be more than 400 a month. Depending on your coolingheating source and the age of the house, your heating bill could be pretty high. During the peak of the winter you could be looking at a 400 or 500 dollar bill. While money can be saved with a programmable thermostat, if 4 people have 4 different schedules, the heatingcooling will be operating for a much longer time. The water usage will also be high between bathroom, kitchen and laundry use. Each person will also have their own personal electronics which can eat away at the KWh.Wear and tear in the house and appliances. Typically, you should budget 1-2 of the houses value annually for upkeep. That is used when a house is in turn-key condition. If you have a fixer-upper, then you wont really know how much money you need. Some rough estimates for a single story, 1200 sq ft home if you hire a pro: Roof - 3-5K, Heater - 2-3k, Siding - 4-5k, New Windows - 500 each, New Electric Panel - 2k. You will also have high usage of the toilet, shower, sink, oven, microwave, fridge, floors, vacuum, etc. Those items can only take so much abuse.Bum Tenants. Give thought to what happens when a tenant stops paying. Consider what would happen if they began to steal from other tenants of if they did drugs inside the house. They could also hit their girlfriendboyfriend in the house and they could play loud music until 2 in the morning or come home from the bar and wake everyone up.Parking for a minimum of four cars. More is better. Will you have any personal space or privacy? Will 4 people share a single bathroom or will 3 people share one bathroom and you get the master. Personally, I wouldnt have more than one room mate. A four bedroom single-family home is really meant for a single family. It could work but it isnt something I would choose. 