Most HM lenders have you pay the appraisal management company directly for the appraisal, outside of that, all other costs are paid at closing. 

If you're running a short term rental, you might consider using a manager that will take care of cleaning as well as bookings etc. 

I am looking to buy a SFR and want help from a Property Management Company to manage it.

or at least had a trustworthy individual / property manager meet them right? 

For example, if you must make repairs after a tenant moves out, you still depreciate the rental property during the time it isn’t available for rent.Vacant rental propertyIf you hold property for rental purposes, you may be able to deduct your ordinary and necessary expenses (including depreciation) for managing, conserving, or maintaining the property while the property is vacant.

Tampa Can Be a Good Option,it has great rental opportunities in neighborhoods like South Tampa, Tampa Heights, Seminole Heights, Carrollwood, and Brandon.Before buying, analyze costs like purchase price, rental income, management fees, repairs, and vacancy rates to ensure a good investment.Other Florida markets like Orlando or Jacksonville might offer similar benefits depending on your investment goals.

I mainly manage but I haven’t done STR arbitrage yet and I’m wondering if it’s really worth it. 

Timing does play a role here and you may just want to hedge your position, start the cash flowing, and then revisit a higher rent when the market is humming.Hope this helps...

It is being managed by a PM who is not very good.

I get the same problem using 3 different pc's.I use the samepassword manager app for thelast 15 yrs, so I know I am not entering in the wrong username or password.Sometimes it allows me to log in and sometimes it says incorrect username orpassword.