If they didn't, there would be no more REI.The real problem you should worry about, is to let that fear force you into making a bad deal...just because you're afraid of where that next one will come from.Some of the best deals you'll make (hopefully) will be the ones you don't make, and the worst deals (hopefully not) would have been the ones you shouldn't have made..that you did make just because you were too focused on getting the next "property" instead of the next "deal".

Talk to an SIOR broker about rent rates, competition and amenities offered from other landlords, etc. and expected best case and worst case for cost and time to get stabilized.Once you evaluate current business owners in the building analyze them to see if they really need a location there or can they easily move to cheaper warehouse space or move into a home office if they had to.

I guess the worst that can happen is they say no.

This makes it hard to diversify.My syndication stuff has beaten my worst properties but not my better ones. 

I'm trying to get a hold of the city to see what this means for the future of the property, but here are my best/worst case scenarios: A) Best case - We are able to continue operation as a mobile home park, sell as many MHs to tenants as possible, expand into the adjacent lot, bring in good cash flow and attract a decent buyer when we are looking to sell.B) Worst case - The new zoning does not allow us to expand or build additional pads, the entire investment quickly loses value over time and we are unable to find any buyer willing to take it off our hands. 

I can play more with the numbers and make adjustments on the insurance as I was thinking of the worst case scenario where the insurance is also high.

Secondly, I consider, in the worst case scenario event (i.e. this person stopped paying, damaged my property, I had to evict, or they left owing me significant money, etc), how likely is it that I could successfully go after them and recover the money owed to me.  

When getting a private or hard money loan what part is the most frustrating?
- Initial intake?
- Filling out loan forms and getting them in?
- What part of the process is the most difficult?

The bottom line here is that you have tons of options and it sounds like you already know the worst one is to refinance and purchase another primary residence so that's a great start and better than most!

Price at worst case , and if its better you come out ahead .