They charge 10% gross collected rent , and take 50% first months rent when they sign a lease. 

What’s the best way to ensure that the price they are charging me is reasonable and how can I hold them to the work/schedule/costs estimated to me?

If you wish to take a distribution from an IRA (I'm assuming that is what you meant when said "move money out") the process would be the same as if you were to take a distribution from conventional IRA.

Also, note if you're new...they will likely charge you higher rate/points because of the risk. 

The general consensus is you're not going to find a true mentor (one that doesn't charge you money) by asking for it.

Charge a late fee every month according to the sate regulations.

Most PM's are incentivized for turnover by move in fee's and by spending more money on your property to charge service fees. 

The % depends on the loan type (conventional vs Fha, etc).

Market rent is market rent and that's all you're going to be able to charge. 

I'd be careful with Holton-Wise - they appear to charge a hefty fee for turnover that will destroy your return.