Hi I'm doing a rehab and pulled out walls of a load bearing hallway to combine two bedrooms to a master suite. Problem is a few things, the floor upstairs feels like a trampoline because the old owner who had built th...

Hey team, so this is a super personal post.  Read at your own risk lol.I grew up in a family that had 2 - 4plexes and 3 triplexes. I grew up collecting rents with my dad, and working on the houses and mowing the lawns...