I am a US permanent resident. i want to know how long until i receive the biometrics appointment after filing form I 131 ?
Normally, Biometrics Appointment Notices come right after Receipt Notices - about two and a half weeks from filing. The Appointment Date is normally about three to three-and-a-half weeks after the date of the Appointment Notice (five to six weeks from filing).
This is just my recent experience; this stuff will always drift back and forth a bit.
The answer to your question will depend upon which local USCIS office will be responsible for processing your case. However, since your question indicates that you reside in Boca Raton, Florida, the current processing time for Palm Beach County is approximately 30 to 45 days after filing.