We have a 110 year old house that we have extensively added on to and remodeled. The last room we have to do is our living room, and it's the oldest part of the house (the original house actually- we gutted it to make it all one big room.) The problem is the foundation and floor. We have a severe slope in the room and the foundation is an old poured footer (very rustic) with layers of brick on top. We originally thought we'd pull out the brick portion and block a new foundationo on top of the old footer and the fix the floor by replacing the old beams and joists (we had to do the floor in our kitchen and it came out great). But, we were also told we could actually build a new foundation alongside the old foundation on the inside of the foundation wall, tying it together with rebar, which I get, but I'm not sure how to shift the weight of the floor from the old wall to the new? Any help would be greatly appreciated!