My concern is, can any city where I purchase a mobile home park randomly decide to change the zoning so the mobile home park is non-conforming and no units can be brought in?  

While a dollar can work, it usually demonstrates that you are randomly sending out hundreds of offers (usually sight unseen) and do not really care if it’s a yes or no.  

@Michael Zagorsky Some random thoughts that may help.1.

I've come across a 6-unit building for sale. 5 of the units are 2bd/1ba and rent for $600 and 1 is an efficiency apartment with one room and a bathroom that has random month to month for around $200.

I want to have more saved for just in case expenses for life/a potential rental property but also want real time experience and I think this would be a great way to do it.Your absolutely right that real "pounding the pavement" experience is the best way to gain knowledge and I think it is a reasonable request which someone can say yes or no..however I dont think contacting random people who are investors on LinkedIn or online is the correct way to do it.

Modern paint tends to flake of in large random chunks where as lead paint creates small squares/rectangles.The other thing to consider is the accuracy of a Lowes test kit. 

I'm guessing that he didn't just dig up his tenant's parents' address or phone number and contact them randomly.

So far I've just tried going on Redfin and zooming out really wide and clicking on random counties haha.

You can always search google for random websites on "real estate" to do research on your own.

So I am an aspiring real estate investor, but to get my feet in the game I've been looking to House Hack my first home. Well last night at I was talking to a guy at my job who has been wanting to retire basically and ...