Anyone know the genus?

[Tgotty90]

Yeah I definitely see what you're seeing but here are my thoughts

For Lasiodora:
-carapace
-leg colorations in the most recent photo (start of darkening of tops)
-sling colorations (stripes)

Against Lasiodora:
-growth rate (4 years old and still looks like that?)
-lack of hair (although could be pics)
-carapace shape alone doesn't prove anything (see picture below of phormictopus that looks very much like OPs spider)

OP called it "he" in the original post. If it is indeed a male, I am going back to 100% not a Lasiodora because they put on crazy size during young molts

Good points, 4 years does seem pretty long but it looked no bigger then 1" to begin with so not out of the question. I got my Lp at 2" and i powerfed the heck out of her and had her big quick. I got my klugi at 3/4" and just do weekly feedings, after 2 years she's only 3.5 maybe 4" at most so i could see it taking another year and a half or so to get her anywhere near that so she'll be around 4 then considering she was atleast 6 months old when i got her.

 

[spodermin]

Yeah pet stores are the worst with that i actually seen the biggest Lp ever at a small exotics store and it was listed a goliath. They wanted $300 for it because they were under the impression it was T.blondi. I told them they were out of their minds lol tried to talk em down on it but wouldn't budge. I felt bad for it. It was as big as my size 13 sneaker and was cramped in a 2.5 gal short tank with no substrate and a rotted pinky mouse in the corner. Needless to say i never went back there.

Christ that sounds like the petstore from hell