Besides going door to door, I would search city court records online for divorces, judgements, bankruptcies, evictions.

Example: evictions records, newspapers (the worst place to advertise is often the mom n pop landlords go to), local (city) complaints department etc.

shows as single family on the tax records.  

I even reviewed with him that the tax records say that the building is a SFH but he assured me that the town does not restrict use of lots to SFH/Multi/Commercial/Ect.The CEO is willing to write a letter explaining that to the appraiser that the transition from a SFH to a Multi-family was completed 20 years ago and there have been multiple town assessments sense that time.

@Toni Conway You should have one tab that records all the transactions and another tab that summarizes the first tab. 

You also want to review their plan and exit strategy and make sure they have a handle on the numbers and the market and have a good track record.

It was so old there were no records or plans.

It's something though that your accountant can explain and probably will account for on the form 8824 to record the 1031.If the deficit goes the other direction you're really better off keeping that away from the exchange because they're really current expenses that can provide you current year deductions rather than getting capitalized with the property.It's a dilemma because you'd be technically correct taking the cash difference. 

Does anyone use a QBs hosting site for online access to their records.

Please share the info if anyone knows any Attorney with excellent track record .Specifically looking for someone who specialize in partnership & JV  real estate contracts.Thanks