Keep track of this communication in PM software so you have a good record of it.When communication is silent there a high probability something isn't right.

I asked the underwriter to confirm the numbers.

Criticizing others for their failure to do the same provides them self-justification for their confirmation bias.This is a common behavior pattern to justify many debatable decisions people make in life.

Confirm their numbers are realistic by reaching out to other investors or brokers in the area; do your homework. 

It starts with a visual inspection and confirmation/denial. 

Reviewing it, it seems that they are using AI type software to run the exchange.My experience so far with AI software in the tax realm is that it is a far cry from being ready for a lack of human intervention and oversight. 

Also they confirmed they have skin in the game.

We can assist in building the scope of work and even visit the property on occasions to get updated pictures/video and confirmation that some work is completed before the next draw, but we can't tie up our operational resources to projects that take more than a couple of weeks.

Along with connecting with governing body to confirm zoning and preliminary site plan. 

I think confirming your target client matches the size/cost of the unit is key here.