I received an email from an apartment owner saying that he is planning to unload several of his properties in the upcoming months and he plans to take advantage of the 1031 tax code.

At least in NJ all the codes have been digitized. 

If this is a duplex hooked up to septic (like some of the older, converted homes in Indy and more rural areas for example) you would need tp verify that your local code supports this conversion of useable square footage as supported by the current septic tank size or install a larger/additional tank. 

If not, then you may still have the right to deductions.As a landlord I would suggest you read the Texas Property Code regarding landlord/tenant laws. 

I limited only by zip code and available mailing address for owners. 

Check if Veneto has something like that.Rental laws: Are in the civil code (law 27 July 1978, n. 392).

You can also look at median home prices in the zip code the house sits.

I want to sign up for the Pro membership does anyone have the discount code?

Labor, material rates and even code/permits are different in each state and even some cities. 

I'm working with a team in Memphis currently and one of the biggest takeaways I've been learning is that it's incredibly important to know your zip codes and areas.