Or I will design and build a hybrid, part Manufactured and part site built, depending on the size of the lot, set backs, local building jurisdictions, etc.If I can work with the MHC owner/managers I will then rent/lease them out or sell them for 195-500+-k depending on the park, site or proximity to the coast or other attractive amenities. 

Waterloo would have to become the size of Tremont for that building to gain a benefit from proximity.

While working the first day on my first job I realized that I was destined to become an entrepreneur I just did not know how to start without any money and my own social anxiety.Now seven years later, I joined BiggerPockets for real estate investments I am willing to trade physical labor if I have to just for knowledge and friends in the real estate business. 

Search by physical address or parcel number.  

Finally, I put a physical FOR RENT sign in the yard, often a month or so before I know the house will be vacant.

You'll want to know stats on the inventory, price points, and the comps (to the point where you know the price, bedroom count, and size but have also been inside and evaluated the finishes and floor plan) as well as the local points of interest that affect property values (proximity to public transit and local amenities, district lines for the better schools, etc.).You can certainly succeed by having your hands in a few different markets, but it starts with mastering one.

The reason the estimates are so off on Zillow comes down to a matter of data completeness, and the algorithms used to select the right combinations of proximity, date sold, features, financing method, etc.

I am not physically there but I made a trip this past weekend to check it out and got a lay of the land.

Much of REI involves the cerebral side, as opposed to the physical side.  

Generally, it's proximity to the ocean.