Custom wordpress loop

You can set your custom loop something like this

$a=2;
//In while loop counter increments by one $counter++
if( $query->have_posts() ) : while( $query->have_posts() ) : $query->the_post();
    if($a%3!=0){  //Here write function to display title and discription
    ?>  
        <div class="col-md-4 col-sm-6">

    <div class="cp-attorneys-style-2">

      <div class="frame"> <a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>"><?php the_post_thumbnail(''); ?></a>

        <div class="caption">

          <div class="holder">

            <ul>

             <li><a href="<?php the_field('mem_twitter'); ?>"><i class="fa fa-twitter"></i></a></li>

              <li><a href="<?php the_field('mem_facebook'); ?>"><i class="fa fa-facebook"></i></a></li>

              <li><a href="<?php the_field('mem_linkedin'); ?>"><i class="fa fa-linkedin"></i></a></li>

            </ul>

            <p> </p>

           <a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>" class="btn-style-1">Read Profile</a> </div>

        </div>

      </div>

      <div class="cp-text-box">

        <h3><a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>

        <em><?php the_field('mem_titles'); ?></em> </div>

    </div>

  </div>      
    <?php 
    $a = $a+1;
    } else {
    ?>
        <div class="col-md-4 col-sm-6">  
        <?php //Leave this div empty 
        ?>
        </div>
        <div class="col-md-4 col-sm-6">

    <div class="cp-attorneys-style-2">

      <div class="frame"> <a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>"><?php the_post_thumbnail(''); ?></a>

        <div class="caption">

          <div class="holder">

            <ul>

             <li><a href="<?php the_field('mem_twitter'); ?>"><i class="fa fa-twitter"></i></a></li>

              <li><a href="<?php the_field('mem_facebook'); ?>"><i class="fa fa-facebook"></i></a></li>

              <li><a href="<?php the_field('mem_linkedin'); ?>"><i class="fa fa-linkedin"></i></a></li>

            </ul>

            <p> </p>

           <a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>" class="btn-style-1">Read Profile</a> </div>

        </div>

      </div>

      <div class="cp-text-box">

        <h3><a href="https://wordpress.stackexchange.com/questions/263067/<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>

        <em><?php the_field('mem_titles'); ?></em> </div>

    </div>

  </div>    
    <?php
    $a = $a+2;
    }

endwhile; wp_reset_postdata(); endif;

Take backup of your code first.