If you are gathering your documents but you are not ready yet to file your petition and your tourist term is running out, you probably wonder whats best: simply to overstay or do the Colonia run (exit /rentry). They both present some risks but in general it is prefereable not to overstay since each time you do it you will be registered into the computer system and after the 3rd overstay you migth be denied entry. So our first advise is for you to get your residency as soon as possible. Staying in the country as a permatourist can trigger a denial of entry at anytime for abusing a tourist visa.