While Vacancy will be fairly steady based on the state/area you're looking in and Property Mgmt. will be fairly standard as well, you can and should modify your allocations for Repair/Maintenance as well as CapEx based on the age and condition of the property you're analyzing. 

My guess is that within the next decade or two all new construction - commercial and residential - will have to comply with "green" standards. 

In a standard split when agents are involved, it’s usually 2/3 paid by seller plus title insurance and the other 1/3 by buyer.

Purchased this duplex that needs some attention to bring it up to today's standards.

It's time to set the new standard.

Wells Fargo was the only one who was willing to lend on it, and they came back the following week and said they just had an update to their lending standards and that they were no longer lending on any investment properties (which makes no sense to me). 

Some of the parks have an internal, almost built-in marketing system for properties that I would carefully evaluate for comparables, etc.

I called a few people so far but they seemed to say the standard was that once it is an investment, they won't give a HELOC.

@Mike Chavan are you looking just for standard buy and hold or are you looking to BRRRR?

Selling way below tax assessment could be a good signal, but don't count on the tax man to do your due diligence for you :)Honestly I'm not even worried about value add, the property is, from an aesthetic perspective, in phenomenal shape, and anything on the internal/infrastructural side of things does certainly remain to be seen.