Have her do a video walkthrough.

Tech will always have a "Next Gen" product which is currently focused on Consumerism (TV's, phones, PC's, entertainment). 

I would reach out to a couple more lenders with your exact issue and let them know what you found about the Fannie Mae product being more lenient specifically and see if they will look into it for you.

Really, their jobs are the same sell you a product and make a percentage.

Surely the loan can be moved to another product that will accept this condition. 

I know the Biggerpockets youtube channel used to have a playlist called "Beginner's Guide to Real Estate Investing Course" where there was 60 or so videos guiding a beginner to understand real estate from start to finish.

Your friend has shared a link to a Home Depot product they think you would be interested in seeing.https://www.homedepot.com/p/Commercial-Electric-Rectangle-11-Watt-Equivalent-Integrated-LED-White-Emergency-Light-with-Ni-Cad-6-0-Volt-Battery-EMLEDRECT120277/306606874

Educate yourself with all sorts of materials such as books, podcasts, YT videos, Etc.

I was humbled by the level of production and investment experience of my fellow group members.

At one point video stores became popular, rented to someone for a number of years till it fell out of favor.