12 or 15# mono for jigging. 20# mono for bait.
At typical sandy/striper depths, line stretch isn't all that significant.
"Decency is not news; it is buried in the obituaries --but it is a force stronger than crime" ~ Robert A. Heinlein, 1952
I can't give legal advice yet, but this site may have some of the answers you need: https://texaslawhelp.org/