Almost all the picture I take are on job site walk thru's I tell any one questioning me that the pictures will be used for my bid preparation. If I send some in I delete any Identifing notes or pictures. After a bid most pic are deleted if I did not get the job. Only the real good or rotten are kept and maybe sent in. The rotten one are given to the AHJ if the owner does not do any repairs. If I am under bid and the repairs are done by some one else then there is no need to keep the pictures. If I do the the job then I keep before and after pics for warrenty purposes only. A few times those pic's have setteled arguements about who did what and when.