Again, the issue revolves around their personal issues. 

I'd rather tell them to hold the loan until the LTV cam into line, selling it later, that is if the lender was a bank.

I'd say the biggest lessons I've learned all revolve around the initial purchase.

So I offered the seller 3k, he didn't say anything, I let the silence do the work, he said 6, I said no way, and went back out to the A/C and he cam down to 5, I went to 4.

@Cam Schumacher thanks for the mention.

All of these costs (and several not mentioned) will be pooled together into the Common Area Maintenance or CAM which will be charged back to each tenant on a prorata basis per rentable square foot (RSF) or some other means of calculating as may be negotiated in the lease. 

My questions revolve around converting an existing building to Self Storage.How do you assess the market viability of adding self storage to an area?

Something to consider, do you really want to make a tenant mad over $35 / year if it is not clear in the lease and was not explained before signing.In commercial leases, back flow testing usually falls into a tenant specific responsibility or is treated as a CAM. 

Your approach should revolve around your personal return requirements.

So, while scouring the the latest market news, I cam across this great article that that tells the story of a "Flipping Bandwagon" rolling  over the nation.