Evictions laws for Texas will they give me 30 days to vacate?

I am behind on my rent and will face a eviction, by law will they give me 30 days to vacate the reason I ask is so my kids and I can find a shelter until then! Also has anyone's property management ever worked with you on the rent, reason I ask is because my granny died and left me mineral oils rights and I get my first royalty check on dec 20, and its over 6k and I would be able to pay then, but not sure they would work with me until then. What the eviction process? Thanks so much I am going crazy here I have 3 kids, if I am in eviction process and then get my check and pay can they still evict me?