Refinancing a tailer park after borrowing hard money

I've been trying to buy a trailer park, they didn't accept my owner carry or bank financing offer.  They are currently over valuing the park and it looks like the only way to get a good deal is to utilize a hard money lender in town and make a cash offer. I was hoping somebody could fill me in about the refinance process. How the appraisal process went after fixing inefficiencies (big inefficiencies in this park!), how long it took you to successfully refinance, if you used a smaller bank?  All information is good! Hoping to get as much information as I can from experienced investors!

Thanks everybody!!

Scott