Add Jquery validation to Wordpress Form - for evgendob

This is a repost of a project for evgendob I have a Wordpress Form build using the Contact Form 7 plugin. I need some custom jquery validation added to the form. There are four sections near the middle of the form: ACQUISITION REFINANCE NEW CONSTRUCTION SUBSTANTIAL REHABILITATION and above that is a drop down called "type of loan". This drop down will determine which fileds are required. If the user selects "Acquisition" then the "Acquisition" section is required, etc. The validation has already been applied to all fields, so the drop down should just remove it from the fields which don't need it. The drop down should also hide un-needed sections. So if the user selects "Acquisition" then only that section will be visible, and the others will disappear. This should be done with jquery and CSS, so that it happens on page. The page should not reload. Please contact me with any questions, or if you'd like a link to view the form.