Typical rates for expenses taxes, insurance,management, maintenance, utilities, and repairs should be from 40-50% of rents.

Are there any investor friendly agents that can share some information on this town as a rental area and if you can share your information on rentals prices in that area or refer me to a property manager in the area that can advise.Thank you in advance.

Once you get under contract, then you buy a flight and do in person inspections, walk every unit, explore the market, etc.Also, your deposit is typically refundable for the first 30 days, which is your due diligence period. 

Go to a credit union and inquire about a "porftolio loan" typically 20% down, 20 year amortization with a 5 year rate adjustment.

You refer to the word experts in quotes.

Quickbooks, which has a very large, existing base of knowledge and service providers.I have an education in the typical accounting given in business schools (Managerial, Financial, etc.), and plenty of knowledge of Excel (I've written VBA overlays for Excel that counted thousands of code lines).

I no longer do them, but you can PM me if you want me to refer you to one. 

Most typically the managers are charging fees for the management, but they may also share in the investment themselves be it debt (loan)or equity.  

There are just too many 3rd party providers that are typically less expensive and have better investment options.  

New home though the big builders typically offer 10 year warranties on the structure, etc.