You are not paying for their services and won't cost you anything extra anyways. 

I can't continue providing that service if the landlord takes over management.

I’m trying to find a way to get her SSN, any service that provides the SSN search?

I work for Evernest, a full-service PM company, here in Birmingham. 

I suggest using a service like Mayistay.

Our cleaning fee covers professional clean, laundry service, and consumables. 

They can also give you a better idea of how much you should be prepared to pay so you can cruise through your closing with confidence.And as you plan ahead for closing day, be sure to budget for your real estate agent’s professional service fee too, in case the seller doesn’t cover it.

If you are going to outsource management you will get everything done for you, but you will have some of your cash flow used for services. 

Many of my customers who are traveling nurses buy condos or townhomes in Florida as vacation homes, then rent them out when they're not in town.This system has proven to be very lucrative, as it allows them to service the mortgage debt and generate a good cash flow.

For rentals in an LLC, most lenders look at the cash flow of the property (aka DSC Ratio: Debt Service  Coverage) and your credit score rather than your personal income.