It states that it is not intended to instruct but rather to dictate the rules to a knowledgeable person. 

They are dictated by the US FOIA laws, we don't set them.

Many times the market dictates and there's just not anything you can do.  

There will likely be local regulations that will dictate the maximum late fee that can be charged.

As far as my investments go I see myself investing in my general area of PA, which is the southeastern portion generally consisting of the suburbs surrounding Philadelphia OR in the northern part of Delaware, since I live so close to the border between the two states.I guess the market and my criteria will dictate where my investments are made!

Your tenant does not dictate the terms of the lease or the rental rate - you do...  

Thanks for the insight Think the best advice in the current market is to run the numbers, know exactly what returns you need to pull the trigger and then be aggressive with offers, well under asking if the numbers dictate

As for what you should include, this is probably dictated more by your local market and the building construction than anything.

Would I have to evict the owner of the mobile home in order to get them off the property if they aren't willing to pay the lot rent that I dictate?

Your state laws will dictate next steps.