<prompt> Human: My wife and I are both 36 and have been married for 14 years. I have been working for 3 years as an associate university professor. My wife is a real estate agent. I earn about 115k soon to be 127k per year and my wife earns 100k or thereabouts, both before tax.We have 4 children, 17M, 13F, 13F, and 2F. Also living with us are my wifes parents. We have a large dog and a cat. In total there are 8 people and 2 animals in our house. We live in the suburb north of a big city. Three years ago, we bought a 41 bedroom, 5 bathroom, 3300 sq ft house in a good neighbourhood close to the best public high school in our province. It cost 615k at the time it is a corner lot. I really like the house. It was renovated before we moved in. Hardwood floors, nice walls, a renovated kitchen. It was big enough for us at the time but as our family expanded, it filled up. My wifes niece will be coming from abroad to stay with us in a few months. She will be going to high school here.Currently, the living arrangement is: my wife and our youngest daughter in the master suite, my in laws in another suite, my son in his own room, and my twin daughters in one room. Now with my niece coming, my son will move to the basement room and she will share his room with my toddler.My wife and I just finished the last mortgage payment on our house. But now she is thinking of moving. She wants us to upgrade to a house in the next neighbourhood over, which is known to contain very large houses with 5 bedrooms. Many have a pool in the backyard. Were looking at houses in the 1.2 million to 1.5 million range and with 4000-4700 sq ft.I dont know about this. I personally do not see a need to move, even with an additional person coming. Besides, my son will go to university in 2 years. In another 4 years, my twin daughters and my wifes niece will also move out and go to university. The house will suddenly be more empty.There is a bit of a squeeze, but its not bad at all. I think my wife also wants to upgrade us to a more affluent neighbourhood with better amenities and more white collar neighbours. What advice would you give me? Do you think a move is justified and a good investment? My wife is positive that the housing market will experience a boom in the next year or so and wants us to act quickly.TL;DR: Currently have a 41 bedroom house with 9 ppl in it, wife wants to upgrade to a 6 bedroom house. What to do?Assistant: 26 m here not as successful as you by any means. But I from what you describe it sounds like you should stay...it almost seems more affordable to just help her parents get their own place And wait it out. A 1.2 million dollar house omg. Good luck either way friendHuman: Her parents are here to stay, because they just immigrated from another country. Also they are a great help with cooking and taking care of the kids.Thanks man!Assistant: Would it be possible to build a small Mother in law suite Not sure if thats the current name on your property, or possibly do an expansion to the house to make it bigger?Human: Sadly no, we have neighbours close by on all sides of the house. Our backyard is small and has a deck so thats out of the option. There would simply be no place to expand our house.  <response>: Could you refinish the basement better and have in-laws down there and your family upstairs? 