Subject: Re: H1-B Visas
Sorry, if you do the paperwork right it takes around a year to 18 months to get a green card - assuming you're eligible.

Employment-based green cards take much longer than this. At least, it did when I was trying to get one.

Perplexity says:
"Employment-Based Green Cards
Processing times for employment-based green cards can vary widely and may take several years, depending on the specific category and country of origin."