Anything can.If the house is older in a neighborhood that is old.If the appliances are old, windows old and leaking, visual cosmetics are tired looking.How is the floors, electric, plumbing, and even the landscaping.In general, its impossible to know unless you compare properties and neighborhoods.

That way the people from within can visual it clearly.I suggest you start writing your plan and I'm sure ideas will flow as you get going.Good luck

Most people can't visualize the difference and in the case of dogs, smell the difference.My first rental was 15 years ago and I started showing the house immediately even though it took a month and a half to renovate.

They need to visualize themselves in the unit (where their stuff goes, etc).

Show them the numbers and provide some graphs if they're visual learners.

If she likes you that much maybe even show her your numbers on paper or the brrr calculator report. it might be hard to explain but maybe with the visual plus your rapport she will meet you where you need to be

I learn best by hands-on/ visual.

The other items are visual only inspections and no additional inspections are done to find the source of the issueHUD will do no repairs nor provide any price reductions. 

If its an occupied foreclosure where the bank "knows nothing" and there are "no interior inspections - do not disturb tenants", at least visually inspect the exterior for signs of deferred maintenance and look for signs of occupancy like an empty mailbox @7pm, lights on, car tracks in snow, prior to making your offer. 

I would say just the visual impact of walking into a well staged house vs an empty house makes a big impact on the buyer.