Originally I was working a $40,000 contract on the basis of a proposal only...i completed ones section of project (about $20,000) as requested by owner/general...then came back 3 months later to complete(Sept 2017 ... I was uncomfortable not working with a contract and so secured a contract for the remaining work and at that time issued a prelim.( Jul 2017).... Now 5 months later they are finally ready for me and I need to complete the contract ...mainly extra charges for repairs and to complete a some details I was unable to complete due to other trades not being complete. So, I just wanted to check that the prelim. I filed in July 2017 is valid (doesnt make sense that it would not be) Then when I finish the work in the next month or so that I have 90 days to file a lien...Is all that correct?