Neither outcome is good for you.I give some approximations of each expense category in The Hands-Off Investor, but the best way to nail down operating costs is to look at the property's historical performance.For example, Contract Services and Utilities. 

. - Products & Services enable us to track each 'phase' of the rehab. - Projects give us visibility on my projects- My CPA can easily access the reports for tax preparation.

Also, some places like CA and MD have very tenant "friendly" laws (against the landlord in some cases) so make sure that you know the laws and if possible, have an attorney or service to collect overdue rent and/or eviction as needed. 

Would the landlords out there recommend providing extermination service to make tenant happy, or remind her that the home was rodent free at beginning of her lease.

You should pay 10k to 15k or less for the service.  10% on a million dollar build is beyond silliness to me.For 100k to 120k in design fees, I'd want the Property Brothers themselves to come down and design the thing. :-)

However I have great units and we provide excellent customer service so I generally have little turnover.

Meanwhile, your expenses, like debt service, taxes, insurance, and maintenance, continue.

I asked about Zelle, it is only a service for US Banks, not internationally.     

If you DM me, I can send suggestions.Yes, you'll want to record the docs after you execute the transaction.Also, don't self-service the loan.

You should definitely talk to your CPA, which I am not, but...My understanding is that until you actually have a business, meaning a property in services, nothing can be deducted.