If I'm working with my leases, I do an amendment to the lease addressing any changes including new rent, who pays utilities, additional fees, etc. 

So, I recommend that you manage it carefully to make sure that you run as close to breakeven as possible.The second issue with any corporation (including LLCs filing as S-Corps) is having the corporation own rental real estate. 

Promising areas to start may include cities or regions that combine population growth, economic stability, and strong real estate trends.Remember to conduct thorough due diligence on any market you're considering, and consider making a few visits to potential areas to gain a firsthand understanding of the local dynamics.

Charge the tenants a higher rent rate and include utilities with their rent.

Just search the name of each and you will find a link to their calculators.Remodeling Calculator offers a detailed guide and calculator to estimate the costs for various aspects of building a house, including roofing, siding, windows, HVAC, flooring, kitchen, and bathroom expenses. 

These include multiple office and retail spaces.

These homes will usually have ARVs in the mid to high 1s and are in areas where the rents will cover the mortgage and cash flow a bit too.Some areas that fit this criteria include but are not limited to: Penn Hills, Carrick, West Mifflin, Homestead/Munhall, and more.

I have done evictions on my own in the past, including filing all the paperwork in the courts, and even showing up in court when one of the tenants decided to respond and a hearing was set.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

that's a phenomenal deal with the ADU included and the garage.