Are the units vintage quality with in-place rents $500/mo below current market?  

Given the lack of activity / buyers in the market at this time with rates, would you reccomend holding and renting it until the market is better to sell in? 

In today's competitive real estate market, having modern amenities can set your property apart, making it more attractive to a wider audience.

Quote from @Tanner King: Where are the best places or best ways to collect data on specific markets?

Along with your list, consider building a local team in each market to make managing your STR easier.

I suspect it's due to the change in the housing market and economy.  

Going through my real estate journey I have learned a lot, I am 24, a veteran and a graduate from Temple University,I started with aspirations of investing on a property and making a quick flip.My problem lied with fear of failing, my capital and my savings.I decided I wanted to learn the real estate market and know the ins and outs before I would make a bold choice on buying my first real estate home.

The Hamptons is one of the most desirable real estate markets in the U.S., known for its upscale appeal and strong demand for vacation homes.Properties in the Hamptons attract affluent buyers and renters, offering a high potential for appreciation and steady rental income.he property may have been undervalued due to its condition, presenting an opportunity to add value through targeted renovations.

Pensacola is a great market for investing and the number of properties available right now is up so there are actually some on market properties with potential. 

I don't know the Baltimore market but have a friend who is a very savvy investor there and maybe he would do some coaching to help you understand which way is up.