Combine Advanced Custom Fields Relationship field + google maps field

gistfile1.php

<?php $posts = get_field('featured_space'); if( $posts ): ?>
  <div class="acf-map">
    <?php foreach( $posts as $post): // variable must be called $post (IMPORTANT) ?>
      <?php setup_postdata($post); ?>
        <?php $space_address = get_field('space_address', $post->ID); ?>
          <div class="marker" data-lat="<?php echo $space_address['lat']; ?>" data-lng="<?php echo $space_address['lng']; ?>">
            <h4><?php the_title();?></h4>
            <p><?php echo $space_address['address']; ?></p>
					</div><!--/.marker-->
	  <?php endforeach; ?>
    <?php wp_reset_postdata(); // IMPORTANT - reset the $post object so the rest of the page works correctly ?>
  </div><!--/.acf-map-->
<?php endif; ?>