You asked
Can I use adapted lenses on the leica tl?
I don't cover lens adapters on this site, so I can't tell you whether an adapted lens will work well on the Leica TL. The TL uses the L-Mount, and the Leica TL page lists every lens I'd recommend for it, all of which fit natively.
For an everyday kit, I'd start with the Leica Summicron-TL 23mm f/2 ASPH, which gives a 35mm-equivalent view, or the Sigma 18-50mm f/2.8 DC DN Contemporary if you want one zoom to cover most things.
Written by Claude from this site's pages.