I am wondering if you would be better served buying a targeted list from listsource (search on BP for info on searches) and then handwrite some yellow letters.

Search here, much has been written on the topic, the new laws won't be such an issue with an investor selling and an investor buying. see your attorney. :)

You may also search for "buy/sell agreement."

I have been using Craigslist to search for rooms and roommates the past two weeks.

They very much apply, if your seller is a dealer or park owner, search here for "SAFE Act" and "Dodd-Frank", for MHs pay attention to posts by @Ken Rishel , mine too LOL. :)

I am still doing a lot of research on that area's market.What are the best free websites to use (excluding CL) to search for investment properties or homes in general?

I did a quick look, and did not see that they had a posting on Craigslist or the Lantern (or I didn't recognize it), which suggests they are limiting their search to friends.

Do a search in upper left corner for "structuring a partnership" and read through the results.

If you do a search, will find several.

http://www.biggerpockets.com/blogs/4178/blog_posts/33328-wondering-what-its-like-to-search-for-properties-take-a-look-hereIn fact, here are a few more of my posts that may help you..http://www.biggerpockets.com/blogs/4178/blog_posts/30227-fact-or-opinion-which-is-the-best-information-to-give-a-fellow-investorhttp://www.biggerpockets.com/blogs/4178/blog_posts/33000-my-favorite-quote-to-datehttp://www.biggerpockets.com/blogs/4178/blog_posts/29349-arv-calculatinghttp://www.biggerpockets.com/blogs/4178/blog_posts/30113-how-to-qualify-as-a-landlordhttp://www.biggerpockets.com/blogs/4178/blog_posts/28728-property-searching-tipAgain, not trying to be an ***.