Of course rents down go down as property values go down, and as you stated, more often they go up...and cash flow goes up with it since the biggest expense, the mortgage, doesn't change. 

. :-)If you could, please share a couple of your biggest success stories out of those 40 homes you just bought.

Here are a few resources that I found valuable when I was learning about the details of investing in mobile home parks:Books: Mobile Home Park 10/20 Investment System by Dave Reynolds, Frank RolfeMobile Home Wealth Part 2: How to Become Even Wealthier investing in Mobile Home Parks by Zalman Velvet, Stuart SilverThe New Investor's Guide to Owning A Mobile Home Park by Laura Cochran, Erin CochranThe 21 Biggest Mistakes Investors Make When Purchasing Their First Park and How To Avoid Them by Charles DeHart and Kevin Bupp (available for free from www.mobilehomeparkacademy.com)Podcasts: The Mobile Home Park Investing Podcast with Kevin Bupp and Charles DeHartMobile Home Park Investors with Jefferson Lilly & Brad JohnsonMobile Home Park Mastery with Frank Rolfe Websites/Blogs: Park Street Partners - http://parkstreetpartners.com - This is the investment firm run by Jefferson Lilly and Brad Johnson.

Actual Gross Monthly Income: $27,610Current occupancy is 96%, but I'll use a much more conservative 10%.Vacancy: 10% ($2,761)Maintenance is probably the biggest unknown.  

@Jieh Larson Sticker shock has been one of my biggest hurdles.

All buildings are multi-family so it is not so much the mortgages that are the biggest hassle but the utilities that are a pain!

I bought them afterwards and I consider it to be the single biggest mistake I've made.  

This is for a house you're selling... what you want is to get the biggest "wow" factor for your money.Go white.. it's very neutral... if the buyers don't like white it's very easy to repaint.

Your biggest fear should be bridges and access

My biggest fear is them mentioning that the damages were there when they started the original lease with the previous landlord.