B2 visa overstay or not?

[orso]

Hello,
My mom has 10 years tourist visa, she has been in the US in the last 3 years once for 5 months and once for 3 months.
She will be coming to visit me in 2018 Jan and will stay until July. In overall when I use time calculator it says it is 184-185 days if one looks to her entry...

[wearecool]

Hi

I have 2 visas F1 and B1/B2 (tourist)
My F1 visa expires in 2017 and my i-20 expires at the end of December 2014
My tourist visa expires in 2020....

I graduated 6 months ago but i haven't left The country(US) because my i-20 still working (that's what the...