Should I combine the marketing of my PM company and my buy/sell RE services in one?

I've seen a few different services like it. 

HI, we can help you out with the contracting side of things . we service Atlanta and Macon area and about to get involved in Coloumbus .

Look into a DSCR, Debt Service Coverage Ratio, loan where the rental income can be used to qualify the cash out refinance instead of your personal income.To Your Success! 

However, the concept of a virtual office is a very useful tool that provides a professional fiscal and commercial address, as well as additional services such as mail handling, meeting rooms, and phone assistance.

Quote from @Josh Jung: surprised you haven't heard of RBP. it's like a mix of services you can offer to your tenants like renters insurance, virtual concierge, etc So the property manager/landlord pays for their renters insurance, and filters?  

Though DSCR gives you a better picture of how the property is projected to perform vs debt service, you can't rely solely on one measure to make a purchase decision. 

Third party servicing company for $35/mo handle taxes, insurance, escrow, tax forms, statements etc.

Instead, we provide comprehensive investor services—from onboarding and training through management—working with trusted third-party partners.

So you have some great resources right off the bat, my additional Referrals would be too many :)