The individual proves their identity before receiving a code.I still do in-person showings as much as possible, but unattended showings are great for after-hours, weekends, or holidays.

However, you can choose to do a Cost Segregation Study and instead of depreciating the property as a whole you depreciate each piece of the property some of which have a shorter lifespan and that allows you LARGER deductions sooner!

Can they prove how long it takes to rent a vacant property?

still not sure how they can prove this. 

Purchase Another Investment Property and Utilize a Cost Segregation Study:When you reinvest in a new investment property, you can perform a cost segregation study to accelerate depreciation.

@Brad Herb - one thing to watch when investing in a syndication with an SDIRA is the highly trumpeted ROI in early years via a cost segregation study and the accelerated depreciation it creates...which you'll not be able to take advantage of via a SDIRA.

I recommend you really study your market to determine the appropriate rent rate, then market yours 5-10% below the competition for a six-month lease.

It takes a lot of training and continuous study to stay on top of tax law, especially with all the changes in real estate tax rules.

It could be hard to prove with outside agents (regular buyer agents) as they don't log their clients in on showings, only themselves as the agent.

The feasibility study happens here before any filings occur with NYC DOB.