(Starbucks / yoga studio / craft brewery /boutique cookie,coffe or ice cream shop  are the easiest targets)-Activation of dormant retail sites-Increased foot traffic For B to AAbove also apply-Home valuations (are homes in the increasing at rates above nearby or similar neighborhoods)-Is it walkable or are projects in place to make it highly walkable for residents-Is it near highly desirable activity centers -is it unique (for example - Can it get historic designation)

As for other amenities, some crowd-pleasers that won't break the bank are coffee maker + starter pack of pods, basic workout equipment (yoga mat, resistance bands), phone charging stations by the beds, and basic kitchen essentials like olive oil, salt/pepper, coffee filters, etc.

If they've genuinely abandoned, you'll notice their clothing, personal hygiene, and things of value are all gone.

PS  flying to DCA today LOL  looks like I will make it had to pull all my warm cloths out of my closet. 

They can get a gas dryer and then have means to dry their clothes.

Some people are sending supplies (clothes, other needed items like school supplies, food for humans and pets, etc). 

It can be like the clothes nobody wanted at the dollar store, it wasn't going to be great to begin with and what was usable in some way is already gone.

Clothing- buy at the second hand store.  

You can make minor adjustments based on the type of appliances (dishwasher, clothes washer and dryer, air conditioning, etc.) and the size of the rental.

The house had the utilities turned off for the 6 years, and was filled with the original 1 owner's furniture, clothes, appliances, car and ecn food in the frig (without elctric on for 6 years).