I can't really get a good grasp on how to start off.

If you cannot walk into your local bank and credit union and based on your relationship with the bank IE large deposits and I am talking in the multi hundreds of thousands.. or very large incomes I am talking in the multi hundreds of thousands.. and or very long experience level I am talking decades there is NO money at those rates. what there is   is money at 9 to 15% or higher.. once you grasped that concept and folks stop wasting time.. then you just plug those numbers into your deals.Now if your talking about yoru 4 mortgage slots for rentals  that's a whole nother story but if your looking for fix and flip type funding  etc etc.. the niche is the HML in the country and there are a lot of themget a copy of the Scottsman guide there are list there of reputable national HML.

How you value a park is the lot rent ( I'm not sure what it is there ) lets just say 250 x9 (occupied lots) =2,250 a month x 12 = 27k annual gross income* estimated 50% expense ratio ( smaller parks run higher numbers and you can get a better grasp using your actual numbers) leaving about 13,500 in net income.  

I have a pretty good idea of what homes need to sell, I have a good grasp on what I can sell them for when rehabbed, and I have a good idea especially in Oviedo of what people want and how much money to put in a house to get the best return.  

I have listened to some of his stories and I am still trying to grasp what he wants to do with his sales proceeds.  

I am really looking to grasp everything that I can get regarding all aspects of the business: marketing, how to spot the perfect property, how to negotiate the deal, wholesale, you name it.

Zillow has good guidlines to grasp an idea of rents but the price should be determined on what is moving for the area.  

I would like to start digging into the Salem market and really begin to get some what of a grasp on it.

My listening strategy was to listen to the first 50 in order to get a grasp on all topics then I moved to the end and started listening in reverse order to catch the more up to date info.

I help a lot of beginner investors that do not have a grasp on rehab costs and I offer my expertise in that area, if I don't know purchase or Arv then I am stuck giving you a estimate base on the work.