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.

These are the numbers that dictate whether it is a investment property or not.

Again, let the market dictate these types of things. 

I take it your lease does not dictate who handles this? 

Since I started in real estate investing, I've researched all the exit strategies and understand that the property often dictates which strategy to use.