@Ilana Shalev Philadelphia is far more nuanced than that (with some zip codes more so than others).

The zone I'm in allows for me to file for a special permit to convert to a 3 family.

She says she can show me the tax code, but I didn't want to argue. 

David Greene makes a video about once a quarter on the BP podcast showing how to do this and usually he gives out a discount code for BP premium.If you need the MLS do you have a friend with access that you can do comps with?

You want a $20,000 special allocation.

Not all 1031 QIs offer this, so look for firms that specialize in structured installment sales, such as those partnered with reputable annuity or treasury-backed assignment firms (e.g., Allstate, MetLife, or independent settlement planners).Key Considerations:This is not a 1031 exchange.

Including the code.

Ironically, you witnessed that asking your professionals did not produce a clear answer, and even asking specialized tax professionals on this forum resulted in a bit of a disagreement. 

As your portfolio grows and needs become more complex, you can migrate to specialized property management software.

I think it's more something that's required by the Department of Real Estate (or similar entity, it may be different state by state, but in California it's the DRE) or by cities/counties based upon their codes for subdivisions with common areas, etc.