In this situation should I accept the ex-husband as the guarantor and screen him normally like the rest of the applicants?

Do you use a 3rd party for screening?

Acting as a messenger, the agent may be in a better position to negotiate a discount without ruffling the homeowner's feathers.A real estate agent can also play the “bad guy” in a transaction, preventing the bad blood between a buyer and seller that can kill a deal.

@Oladosu Segun good screening! 

So, the first question they usually ask a PMC is about fees - instead of asking about services and HOW those services are executed.EXAMPLE: PMC states they will handle tenant screening – what does that specifically mean?

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

In my opinion you can't fail unless you don't screen tenants correctly, buy in a bad neighborhood, or get over your head with a rehab.

So, the first question they usually ask a PMC is about fees - instead of asking about services and HOW those services are executed.EXAMPLE: PMC states they will handle tenant screening – what does that specifically mean?

One of my major screening criteria is you must have the deposit and first month's rent plus pet deposit within 48 hours of acceptance. 

If I were you, I would hold the property...you have already put your money, blood, sweat and tears into it, now its time to let it work for you (with your PM).