# set variables
$server = $env:COMPUTERNAME

$tableOutput = New-Object System.Collections.ArrayList

# get members
Function Get-Members($groupName){
    $testgroup = [ADSI]"WinNT://$Server/$tmpGroupName,group"
    $members = New-Object System.Collections.ArrayList
    $testgroup.psbase.Invoke("Members") | ForEach-Object{
    $searchFilter = $_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null) -replace "\."," "
        $tmpUser = Get-ADUser -Filter {(Name -like $searchFilter) -or (SamAccountName -like $searchFilter)}# | Select UserPrincipalName
        if($tmpUser){
            #$tmpUser
            [void]$members.Add($tmpUser.UserPrincipalName)
        }
    }
    $members
}

Get-WMIObject win32_group -Filter { (LocalAccount='True') } -computername $Server | ForEach-Object{
    if($_.Name -like 'FRAmds-P-MMI-*'){
        $tmpGroup = $_

        # get data
        $members = Get-Members($tmpGroupName)
        $tmpGroupName = $tmpGroup.Name
        $tmpGroupDescription = $tmpGroup.Description

        # save into object
        $groupObject = New-Object -TypeName PSObject
        $groupObject | Add-Member -MemberType NoteProperty -Name GroupName -Value $tmpGroupName
        $groupObject | Add-Member -MemberType NoteProperty -Name GroupDescription -Value $tmpGroupDescription
        $groupObject | Add-Member -MemberType NoteProperty -Name UsersList -Value $members

        [void]$tableOutput.Add($groupObject)
    }
}

$tableOutput | Select GroupName, GroupDescription, UsersList