I downloaded the RPI3 FreeBSD12.0-Current from the RaspBSD.org website and followed the instructions to use Win32DiskImager to flash the SD card. Everything worked great and it booted right up! But I quickly ran out of space in the partition, and can't get it to resize. I have googled for hours and tried everything I found, including a couple of threads that described my exact problem - but the solutions never worked. And tried reading all the relevant man pages. I will confess to being a bit of a newbie on BSD and am probably missing something simple. I believe the snip demonstrates the root of the problem.
Thanks in advance!