Working with a rockstar LO that understands investors is critical in these situations so that you don't make a misstep and get stuck. 

Maybe try a more experienced LO that specializes in residential lending instead of the credit union.

Does anyone use any sub 2 or LO contracts in Ohio that have been reviewed by attorneys for suitability to this state?

I am working block homes also with L/O and Sub2.You posted-I think your success is basically with the fact that these mobile homes arent selling, you quote 3 years some have had no action and the sellers are super despirate, but this method also works with SFR.I think that is the reason for 99% of my success and any other investor is dealing with motivated sellers.The point you brought up about an owner with a mobile home being able to move their home off of the land is true.

Your LO needs to versed in how to make deals work for investors. it is NOT hard but there are a lot of LO's out there who do 2-3 deals in a good month so they just do not see deals from investors all that often. 

Lo and behold in a few days it's under contract.Second issue: The property went from coming soon to active - this time, the listing agent simply announced they will not be showing the property.

An Alternative to Sandwiches is a Cooperative Assignment, where the Owner LO's from a Master TBer (that's you, the REI), Master TBer assigns the deal to s Final TBer for a fee paid in full or some in a Note.

SoCal, specifically the Inland Empire is a gold mine for Seller Financing & L/O deals.

First, I will probably L/O it with rent in the 15-2000 a month range (preferable 2000 or close to it), depending on where you are.

I don't mind answering that.I am very pro-active in making sure my L/O tenants buy the property.