The problem with that plan is the MLS has rigid rules, and guarantees for agents involved in a transaction that assures them they will get paid when the transaction closes, and guarantees them a specific dollar amount or percentage in advance.  

Sounds like they are fairly motivated but not enough to have their property tito e up under contract with only a $1 guarantee.

It would be like you saying, "Well, I do not want to fix the sewer system, so I am just going to pump it onto the back of my property in such a way to guarantees it flows into your high rise area."

He disagreed, wrote a detailed report and recommended action, it cleared inspections, sold fast, and was guaranteed against future movement for $14,000 less than the other companies said. 

Also, make sure they offer a guarantee.

It's a guaranteed 19% return on his cash. 

However, last year I was able to put my primary in an LLC and personally guarantee the loan.

We want the root cause of the problem addressed and the problem fixed for good but we are not sure our property management company can manage this repair and/or stick us with unnecessary costs and/or no guarantee of reoccurence.  

But I guarantee you the companies putting their name on the top of buildings in downtown Atlanta or Charlotte are paying a lot for it or getting equal value in lease negotiations.It sounds like your particular sign has some solid value to the business so I would start out asking for something for it in your negotiations and go from there depending on what else they and you want.The only caution I would throw in is to look at how valuable that location is to the bank.

You will still need to provide a personal guarantee at your level.In this case you may need a partner who has experience.Look at small local banks.  50K is a very small loan.