A CliffNotes versions of what happened to follow.

After getting three separate IPDSL circuits piped and installed at my house (ATT Business customer), I can uplink my laptop into each modem, pull an IP from it's internal DHCP range, and successfully surf.

Getting some help from this guy: https://forum.pfsense.org/index.php?topic=28121.0

I wound up setting each Motorola NVG510 like the following:

No wireless
DHCP range: 192.168.15.102-103
    2nd modem: 192.160.15.104-105
  3rd modem: 192.168.15.106-107
DHCP Lease 1 day (default)
Disabled IPv6
Firewall>ALL off except IP Passthrough.
Ip Passthrough: DHCPS-Fixed
entered MAC for WAN1 nic into modem 1, WAN2 nic into modem2, etc
DHCP Lease: 3 minutes  (lowest it would go)

then you are forced to restart each modem.
Now within PF I set each of the three WAN interfaces to only IPv4, DHCP, and Block Bogon Networks.  Nothing else within each interface.
Now under System>general Setup.DNS Servers I made sure I had three different DNS servers specified for each WAN interface. 
Under System>Routing I editted each interface and made sure the Monitor IP was unique to each interface.
After all that I noticed under Status>Gateways all three were up and green.

I then followed the steps outlined on https://forum.pfsense.org/index.php?topic=28121.0
By creating the routing group then the firewall Lan Net rule and VIOLA!

Granted I do not know why WAN2-3 have no renewed an external IP passthrough from the modem.  If anyone know how to actually test the load balancing I'm all ears.