Found code to change the default landing tab for each group.
COPY CODE
add_filter('bp_groups_default_extension','bpdev_custom_group_default_tab');
function bpdev_custom_group_default_tab($default_tab){
$group=groups_get_current_group();//get the current group
//if current group is not set, return the default tab
if(empty($group))
return $default_tab;
// you may create a switch/if else to default to some other tab based on group slug or group id whichever you prefer
//here I am testing agains slug
switch($group->slug){//to test against group id use $group->id
case 'family-law'://the group sug
$default_tab='members';//the landing component
break;
case 'study-group'://the group slug
$default_tab='forums';//the landing component
break;
//go ahead add some more
Still cannot figure out how to unset the “home” tab. Any assistance there would be helpful.