But if that is what fits your risk appetite while you're learning the ropes of being a landlord then it might make sense for your scenario.

As someone else mentioned, your question is more of a book topic.To give you one specific data point that I hope will be helpful, in short, if I was your client and you found me a small multi with a current GRM of 12 (that I could get closer to 10 with some improvements/mgmt), and in a local neighborhood with "will always be a renter" residents, and a few other attributes I favor, I'll buy it, throw off 5% free CoC return, and a 5 year IRR around 15.There's an insane number of variables that go into me having these specific requirements, but this is the best optimization I've done for my lifestyle, situation, personality, and risk appetite.  

Based on what has happened over the last 5 years , its actually whet my appetite to buy maybe a du/tri/four plex to rent. 

Hi @Philip McTigheThe info from @Dana R. is great - I would be sure you add a couple more items that some people I find tend to forget on your rentals: Cable TV and Internet, not always required, but they are a great help to making your units more marketable.Also I found in my research for one market I am in, if the property has not already been zoned for a nightly rental you have to get that approved by the city, and they also require a fire suppression system (sprinklers) be in place.

Everyone on who currently lives there was either a direct participant in the program or is some how related to someone who currently lives there.I've spoken with the current property managment company, they recieved strict instructions to keep rents suppressed.

Your risk appetite is very impressive.

They have a larger appetite for small multifamily than the larger banks.  

All banks have different appetites for different products.

Every building is kinda unique and each carrier has their own appetite so it's hard to make a blanket statement. 

Generally, outside of seller financing, the types of debt available for MHPs are:Local & Regional Banks - You can find out which banks have an appetite for mobile home parks by asking the MH/RV brokers in your area, networking through other owners of parks in your area, or simply obtain list of the smaller banks in your area/region and call them to see if they have lent on parks in the past.