Example - Flooring, appliances, windows, countertops, HVAC, bathroom #s, bedroom #s, etc. 

To add to what was mentioned, I would look at the maintenance history of the property to see what repairs have been made that are more capital in nature (say, new counter tops or kitchen) versus an ongoing issue (plumbing backing up every few months).How is the insurance search going for you as well.  

Holding on to it with painting of the interior and upgrades to countertops to be granite.

Is your wife prepared to come home to "her" granite countertops, the ones she pleaded with you for year after year before she finally got them, and find multiple chips in them?

All new flooring, cabinets, countertops, complete bathroom makeovers, light and water fixtures and so much more!

I think it was @Mike H. who said that you'll get more interest if you pick one or two things in the house and over improve them (aka granite counter top in one of the bathrooms, etc...) so that it makes the property stand out from just all of the other plain properties.Also, being in the Baltimore area really is a challenge.

Look how this beautiful range hood instantly elevates the look of this kitchen.Consider butcher block counter topsIf a little paint can’t solve your kitchen problems, but it’s not in the budget to upgrade to quartz or granite, consider butcher block countertops.

countertops? 

We were just discussing on another post how one of the newer trends is to have dark base cabinets and white or light uppers along with a light countertop.  

Granite countertops before they were standard.