In Colorado I understand that I must send a letter of intent to lien to person conducting the work for and or homeowner if needed before I can file a lien. Timeline for Colorado to file lien and does the letter of intent need to be filed with the courts before sending letter of intent or can it be certified mail? I also have change orders to be paid on as well as digital design and prints and all associated labor fees of entire job that I haven't received payments on. Can these all be put onto lien even if it is not written in a contract but asked verbally and agreed upon verbally by both parties? Thank you