However, you also need to consider your approach!

This can be considered adequate consideration too in most cases. 

Consider the property you're interested in. 

Information sought to be protected by an NDA must be specific so that there is no ambiguity, and for the courts to consider the agreement reasonable.Examples of information protected by NDAs include trade secrets, financial information, customer information, intellectual property, product formulae, product information, business plans, contracts with other organizations and computer codes or access processes.Sometimes, defining confidential information is hard because a whole lot of information is involved, especially in unilateral NDAs.

You'll need the tenant to sign it as well.That said, if you want to retain the tenant there are some things you should consider before pushing the rent way up in one go. 

She cautioned I need to be careful as this could be considered mortgage fraud if I do this multiple times in the same area. 

Join local FB groups in the areas you're interested in, follow a local Realtor, visit the area again and set up a showing or two just for reference, generally always be 'training' to carry the boats! 

The house we are considering is a new build 3bd/2.5ba in Lochbuie/Brighton Colorado which is a growing area with decent rent growth 4.8% MoM currently we think we could get $3,600/mo. if we finish the basement ourselves idk $30K?

These are all considered B areas, but they vary street to street. 

You should only consider switching when your current software has a significant flaw or lacks features that force you to spend excessive time on workarounds.