Do your due diligence, but confirm it with your team (and any large discrepancies serve as red flags, about either the information or the confidence in your team members).

Also how do I make sure there isn't a discrepancy between what the tenant and the landlord said he gave for the deposit ?

Walk around with them, ask them questions about anything that comes to mind, ask them to point out any discrepancies that they note.You'll have to learn how homes are built and operate to be successful in this business and this is the best way to start with that.

Obviously there are several issues at play here, as not everything is a true apples-to-apples comparison and it's quite possible that many of these units are rented to family or long term renters, but the discrepancies are off by often $700-1200/mo. 

I see this discrepancy on every analysis I do.

Hi,I saw a property on auction dot com that come up with "Title" doc.  The doc stated there are 3 open liens:-2 small open lien dated before the house was built-the mortgage lien on the houseThe strange thing is the o...

I have no idea how it'll play out in your scenario or what the discrepancy was, however.

If you have grounds for a reduction, recent arms length purchase or neighborhood comparable sales that prove a discrepancy in value it’s an arduous, but not difficult process.

Also the sq ft size of the house has discrepancy in records both in Tax records, and what the appraiser's perception of living area is. 

Not sure why there is a discrepancy.