I would also be very clear with him going forward that you want to be in charge of all repairs since you own the house.

It is increasingly common for a PM to charge a "leasing fee" which covers all the costs of marketing, showing, screening, placing tenant under contract, collecting deposit and rent, setting up utilities, getting the tenant placed, etc.If the PM can't justify the cost, then they shouldn't be charging it.

We charge and additional $75/night for every guest after four persons.  

In my housing authority, it is illegal to charge any difference that is not in the agreed contract with the housing authority. 

Definitely not worth it unless you have built-in solid protection and are the one in charge of funds.

If you choose to accept it, make them apply and pass your screening, add them to the lease, and charge extra rent to make it worth your trouble.

You can do a balance transfer right into your bank account, they normally charge you a 2% -3% upfront fee and give you 9 - 12 months 0%.

My new CPA charged me $2,900 this year! 

A large firm may charge more than a small one due to higher costs/overhead. 

What percentage of my rent would you charge or is there a flat fee for each cleaning?