There are a lot of other restrictions here on owner finance that make it difficult. 

Since you lived in the area it won't be too difficult being a landlord to one  SFH.  

It is difficult in my mind to make an argument for the adjustable rate loan.If you take cash out, what will you do with it?

If it is difficult for you to finance now, it will likely continue to be difficult to finance for the buyer you try to sell it to, so unless you can A. make the old mobile home not an old mobile home or B. make it easy to finance then it's just asking for complexity down the line.

Yes, I called a few agents in the area that seemed to have a lot of land listings but found it very difficult to get any of them on the phone.

Getting insurance is really difficult in Florida, had to spend alot of time on the phone shopping around insurance pricing that we could afford.

I've been trying to get firm quotes on the rear building and its been very difficult to get someone over there.   

I know that fault is difficult to prove, but is there any language we can add to the lease to hold the tenant responsible?

I guess it is difficult to avoid the tax man in my case.

If I do 30yr, mortgate is $1200. it is a bit difficult to remember this is business and it scares me a bit to owe again.