Adding pagination to a custom query

I’ve read through several different posts, and tried a few different methods (get_posts, get_results, WP_query) of pulling the appropriate sub-pages underneath this one: http://dev.daytoncvb.com/where-to-stay/

I would like to display just 20 hotels per page, and then have some pagination options at the bottom of the list. Here’s the code I have at the moment:

[Code moderated as per the Forum Rules. Please use the pastebin]

Ideas?

Thanks,
Shaun