Congratulations,These costs look reasonable, but as you mentioned a double origination fee that they'll remove, so all good.

It took us 3 months to remove an illegal mentally disturbed tenant from an apartment who was sub-letting from one of the tenants. 

Remember your costs will be more for an STR, you'll be paying for a lot of things you wouldn't with an LTR - higher STR insurance, all utilities including internet, supplies like toilet paper, paper towels, dishwasher detergent etc, upkeep on furniture and linens if damaged, yard maintenance and grass cutting/snow removal, trash removal, etc.  

I have tried to remove National Parks from mine and a call did not do anything.  

Removed a pool it will cost a lot of money also. 

Rehabbing units, removing problematic tenants, new infrastructure.

Removing tenants is a serious pain in New Jersey - though I realize those specific deals may be rehab and profit opportunities.

If you ask the manager to justify a fee and he starts hemming and hawing, move on or require them to remove the fee.

Heck I had a lot of posts removed because they were on the line of promotion.  

After removing the mold risk and opening the walls we found moisture coming through the foundation showing improper foundation work done over time, including wood foundation being used in the rear.