I am launching my first STR and I was wandering what are the most common site for bookings besides Air b n b and what are their pros and cons. 

I may never go back to self-managing - still up in the air on this.However, I truly believe the value of the PM is worth what they are charging.

(Or, is pressuring you to???)

Please don't let anyone pressure you to fly in, it's a bonus but not necessary!

Example:1 -Single family - central air already installed when I purchased & I provided washer & dryer units. 2- Duplex - no central air installed and washer & dryer units are provided by the tenants.

My go-to site is Ingram's Water and Air Equipment. 

So I’m in a bit of a bind, I have a duplex I’m house hacking we remodeled entire thing, new hvac, electric panels, electric main, updated plumbing, water heaters, furnace, install central air, roof.

Because they will get defensive if they feel you are pressuring them.

Mary’s Counties.)The market here is often driven by government and military employees due to the proximity of Patuxent River Naval Air Station and government agencies in DC, The Southern is known for larger lot sizes, single-family homes, and a mix of new developments and older properties.

Hello Ethan, I think that you can research on Air BNB and VRBO to see if there any existing STR in your area to begin with.