Re: Drooping Floors
dusty .... unfortunately there's no way of telling over the internet what conditions exist.
Although .. based on your descriptions you definately should have a structural engineer evaluate the building as well have the mechanicals ( plumbing , electrical , HVAC , etc. ) evaluated.... especially if you are entertaining renting spaces to tenants.
Sounds like there will be big $$$ being put in .... may even be a total gut and renovation.
Hope this helps.
"" an ounce of perception -- a pound of obscure "