I'm only bringing this up because you mention 1) rent is always paid on time; 2) neighbors have no issues; 3) The tenant's are hardly there (which means less property wear and tear) and 4) I will also assume becuase of the first 3 here, that your property is also being cared for...... seems like picture perfect Tenants.... 

I am putting a 3rd floor on and already have my zoning permits and waiting on construction plans.

But the other factor is what you mention about investing in a "tenant friendly" state.

you can start looking for creative financing deals - i highly recommend seller finance, where the property you're purchasing has no mortgages on it - now, or wait. 

I would imagine this will go fine, but like others have mentioned, I would also mention that this notice is to the previous owner and from a tenant who no longer resides at the property.

Looking for some insight if I should wait to purchase in the hopes of more multifamily properties becoming available in the future, if I should make an extremely low ball offer on what's currently listed.

Here is a summary of the book.https://www.nateliason.com/notes/long-distance-real-estate-investing-david-greeneThe book also mentions the importance of having a rockstar Realtor, contractor, lender, and property manager.

thank you then I should wait for another month to see if they are planning to stay or move out. 

Consider the savings you could miss out on if you don't have an expert do it, not to mention the time and energy spent.

I just had my first interview, waiting on the second.