Invested $40,000 with the online store.   

We own a flooring business, and I can tell you that the majority of the time your local mom and pop store will be cheaper than the big box stores.

A friend of mine attended one and found it incredibly helpful..they even walked through actual deals they've closed in the area.Don't overlook online resources either.

We have worked on improving the physical appearance and infrastructure of the park, updating the homes, getting a new sign, advertising it online, and creating a website (www.shadyacreshuntington.com).

Should I be visiting, asking neighbors questions, getting a feel for the neighborhood and home (in person rather than just off of online research) before buying or making offers? 

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

There's a lot of bad information available online and its not prudent to rely on most of what you read.

Some of the upgrades look great from the pictures I saw online.

It is on the HUD statement on line 503.

This one is available online for free at nfpa.org.Much of what's in these docs doesn't apply, because they cover a LOT of ground.