Hello.
As I understood you need layer with points that will contain:
Written location from txt file, long/lat, Correct address, Comment field with description if location is not accurate and can be described as driving directions that explain a location.
I can do "point/address" layer with these properties for this price.
I have a missunderstanding with this:
- For all other addresses, provide a shapefile which defines the address locations AND a streets layer which defines any missing streets. Existing streets from OSM layer must not be duplicated.
What do you mean when tell "streets layer"?
If you need additional layer with streets we have to discuss what do you want, because I do not understand.