How many days to do I have to file a mechanics lien in Texas?

The rule depends on whether you were a general contractor, sub-contractor, or sub-sub. Generally speaking you have until the 15th day of the 3rd or 4th month after you provided your work or materials, to file a lien affidavit. You must have sent the proper pre-lien notices, and if this is residential or homestead, there are more requirements to have an enforceable lien. I hope this helps you some. The answer is not as simple as you might be hoping. There's also something called a constiitutional lien -- that is avaialble in certain situations. Also, remember that the lien is only 1 way of getting paid. You can always sue on the debt, even if a lien is not available to you.