I've actually done this several times and found, after the first time, that it was best to sell much of my living room furniture and start over with fewer pieces that would fit into the new location better. This also allowed me to "redecorate" which made the moving process more emotionally appealing.
I found that smaller scaled pieces were much more appropriate than what I had owned in a family home. I also found that "visitors" were fewer than when I had lived in a larger home.....I didn't actually "need" a sofa - a love seat would do.
I eventually came to this place - the rural cottage I am in now - that doesn't even have a sofa! I have a recliner a floor lamp, a chair side table (actually an 8 drawer unit in which I can hide all sorts of things like cds, remote, binoculars - I live on a farm near the woods and the view is wonderful - extra napkins and salt and pepper for my dinner tray, and so forth) and one pretty wooden side chair for the occasional guest. The rest of the living room is my sewing space.
I believe that thinking outside the traditional box of “this is how we’ve always done it;” or, “we love that chair/table/lamp/sofa;” or “my husband would never agree to selling that”, then you will have a much easier time of finding your new home to BE a home for you.
I wish you the best; it’s not an easy decision.
Jan in VA