I'd love to get some info about the Philadelphia market as well.

Whatever rent income/expense we receive/incur, is it split the same % as well?

Well the good news is that there are a boatload of PMs in Orlando.

The area you love is loved by many folks and should do well if you can buy it right and get some decent terms.Reach out to @Avery Carl at the https://theshorttermshop.com/ They have the pulse on the Smokies as well as other areas.

This worked well at first, but I started noticing "ghost" charges for random repairs and services: $45 for a door knob replacement, $85 for wall repairs, $65 for a toilet leak, etc.

I’m thinking about going with them as well.

For buyers or their brokers with well capitalized investors, inquiring directly for verification of a property whether it has an assumable note is good practice while interest rates remain elevated. 

Most lenders do not like these lower property values because they are too risky of an asset class, little return in interest and fees, and long term financing will be an issue as well.

I hope it goes well! 

Doing your own general construction for a rehab project can have several advantages but can be very costly attempting  without having knowledge and experience.1.