The next best thing, if you don't want to invest in drawings this early, is to write out a detailed scope of work that your contractor can bid off of.

They'll be able to give you more details on what is classified as Zone B as well. 

I guess they have to crunch the numbers and that takes time.https://us.spindices.com/index-family/real-estate/...Zillow has a feature that allows you to search and city and crunch your own data.

Please Message me for details.

@Alec McGinnOK, sent you the details of my portfolio in a message, because I would prefer not to put a target on my back for identity thieves.

As an LP what due diligence is required other than the deal details.

I would also get started on making a list of value add opportunities that are available for you to add to the property.I recently wrote a very detailed blog on BP that you can review to spark ideas:https://www.biggerpockets.com/blogs/10864/73644-top-14-multifamily-ideas-to-add-value-including-drone-landing-pads

I won't get too deep in the details but I had an appraisal done on the land with a proposed house on it and it came back pretty good.

@Paul Wakim, thank you for the detailed explanation of what you managed to do with your own culled lists using a programmer's services.

Security deposit amountYou can find plenty of examples by searching for "tenant estoppel certificate doc" or exchange "doc" with "pdf" for more options.Here is an example and explanation: https://eforms.com/rental/estoppel-certificate/Some have a lot of legal jargon but this document does not need to be so detailed.