If you believe you are offering a valuable service to society and should receive acknowledgement for that service you better shake your head, you are wrong.

In 9/10 cases the lender will require a certain DSCR or "Debt Service Coverage Ratio" to be met.  

Once our income is replaced, we will continue to add to our real estate portfolio and start looking for opportunities to invest into businesses.I came to join Bigger Pockets by searching the internet. 

I have some experience, having knocked down a drive through location and replaced it with a national food service company in a nice town and then also purchasing a historic bank building and leasing it out as office space. 

Be prepared to pay $75 to an electrician to flip a tripped breaker or change a ceiling light bulb, $75 to a plumber to change a flapper in a toilet or a cartridge in a faucet, $750 to replace a hot water tank, fridge, washer/dryer, $100 to a cable/internet tech to unplug and plug in a modem, the list goes on.

Make sure it explicitly explains the process for termination if you are unhappy with their services, but especially if they violate the terms of your agreement.3.

So, the internet says this is not a good idea.

A quick search seems to come up with companies willing to fill this role for $100+/year.Should I be paying for this service for each LLC I form now and in the future or should I use myself or my spouse?

All the information you could ever need is all over the internet.

If not, use a skip trace service.