I plan to save the rental income for reserves, screen tenants properly, buy in C+ to B class properties. 

And if you think that you could just give them more points on screening so they are more likely to get your place then other professions, without a discount. 

In many parts of the country a two unit building containing an upper unit and a lower unit is referred to as a flat.

Do you do everything flat?

I prefer to charge an increase to the monthly rent.Do some research on BiggerPockets or Google to learn about screening pets, how much to charge, setting rules, enforcing rules, etc.

But, I will be finding/negotiating the deal, listing the property for rent, screening tenants, and handling all maintenance myself.

They will handle all aspects of renting out your second home.Long-Term Rentals (LTR): The management firm can find long-term tenants for your property, screen potential renters, handle lease agreements, and manage any issues that arise during the tenancy.Seasonal or Short-Term Rentals: If you prefer to rent out your property on a seasonal or short-term basis, the management firm can handle marketing, bookings, check-ins, check-outs, and cleaning between guests.

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

Go to BUILD YOUR TEAM at the top of the screen and look for local investors or meetups in your area.

The other primary time requirement is tenant interviews and screening; which I feel could also be out sourced with a pre-made script (at least the initial phase of tenant screening).