So this is my issue, in my area we have a bunch of townhomes and single family homes and I am trying to get more advice from you all about which of the two you have had the best experience with with tenants and how qu...

In other words, the Buyer/s may value certain features, materials, layouts, etc, more or less, depending on their (the Buyer/s) demand and desires.

To directly answer your question I do not know Baltimore, but as you are looking for properties to wholesale, make sure the properties are in desirable areas with good numbers for bot fix and flip or long term rental buyers.

It also helps a lot of it's STR friendly and desirable.

So maybe the suggestion there is to start watching the hud site for your county and maybe a couple of surrounding counties that are within reasonable distance and see what prices the houses go for.But I think you're going to find wholesaling hud homes a little less desirable.

In California, I don't think I've had a single person in that income "goldilocks zone" (high enough to justify a mortgage in the amount desired on a 2-4 unit, but not so high they're over the income limit -- not too cold, not too hot, juuuuust right) since they made that infamous change in July 2019. 

This x100 It's going to be making sure your deal has plenty of extra room and making sure you have all the desirable STR bases covered 

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Supply and demand and your desire for a property will dictate your offer terms. 

If you're fully underwritten with an approval, while you're not "cash", you'll be much closer and much more desirable.