Exclude any units that are out of your league and focus on similar comps. 

Stairs are the only way to get in, no grab rails in the bathroom, ramps that are too steep, etc.From what I've read, all commercial businesses/buildings (including ones before the ADA was passed) have to comply with the rules, unless it would be outrageously tough to fix (like installing an elevator in an already built building).Are all these local business just not complying and taking the risk, or am I missing something? 

Thanks @Henry Lazerow, that is basically what we do in the city. 

It ends when they AND their stuff is removed to the level that allows you to begin the re-rental process. 

Make sure you are clear on your objective so they are not showing you deals that are not worth looking at. 

So be careful of that.

What are some other things I should retain to make the landlord experience easier?

@Kasey Hardt very interesting,  didn't realize this was a pattern but even I've got friends that are getting recruited to the area for medical device startups etc, so could be a very interesting trend to watch.

Agree it is difficult to assess costs when they vary so much by location.Keep in mind that some turnovers are sickenly expensive, and that is just the nature of the business. 

In addition, the Grantor will probably be required to sign the same seller's affidavit that are needed for a non DIL closing.