Is this something I should do promote the relationship with the bank?  

.), but my husband handles this sort of work on our own properties so I don't have an established pro relationship to pass along. 

Or is it more time effective to just simply put an offer in with a due diligence clause?

How is your relationship with your own bank?

Building the relationship is a long process.

If this is something you are inclined to do I'd recommend approaches that help you to build relationships.

As far as I can tell, then tenant has no effect on the cost of landlord insurance.

So, the effective rate is $0.

I've been told that letters aren't the most effective way to contact owners of large apt. complexes.Supposedly, the best way to get into the loop and have the first crack at purchasing larger multi-family properties before they hit the market is to (1) network with commercial real estate professionals such as Scott the CCIM (2) join commercial real estate organizations such as the IREM, BOMA, NAA, and ICSC or befriend individuals that are members (3) approach a property owner in the flesh and (4) network some more.You agree Scott?

Instead make contact with the seller on the listing, establish a relationship and tell her what you really want, what you expect to pay and the terms you need and I promise you you'll get a bunch of hugely discounted deals.