My suggestion is to go to the building department and request
copies of the building permit and the final sign off on it.
Just say you lost the paperwork for it and would like to keep it
for your records so not to raise any red flags
This way you know it the ones you received are forged in anyway.
Also you will know the inspector who signed off on the work.
Also ask for a copy of the blueprints that were submitted and
any engineering paperwork that goes along with it.
This way you will find out the Architect and the Engineer that
put your plans together.
Just act like there is nothing wrong
and you just want these things for your records.
I think that this is a good way to start before bringing up
anything to anyone
this way you have all the information before proceeding,
and you just may find out quite a bit more that you do not know
now.
Vacant House
44600 Little Lake Rd. Mendocino, CA 95460
Information on this house (I don't think it is for sale
at the moment?)
So I have found out a little more about this house...
I called the Building Department, and they have a history on
this house.
The last time a permit was pulled on it was 47 years ago in 1975
for plumbing work.