Having two open loans for the property is not ideal as that's double closing costs but maybe that is a fairly normal strategy?

This would normally depend on the condition of the property and the Condition of the tenant.  

There are a lot of factors out there but savings is a lifestyle and some people are just incapable making sound financial decisions. 

They will normally charge you for desk space, using their printer, support from them and their office staff, Etc....Then there are MLS fees, Lock Box fees, Continuing Education costs, and the basic costs of running your own business.

I normally have a 30 to 45 day grace period on my option contract, to locate my end buyer to assign my contract to.

I haven’t run the credit checks yet because I normally would simply reject when I was informed the required credit scores weren’t met.

I did and told them that if they don't have a signed lease and deposit, it isn't rented.One month seems to be normal with PM as they have a number of units turn over at the same time and don't show them until the place is vacant and cleaned. 

Most carriers don't want to insure a building as a normal rental home if there is a possibility of commercial use, or even if it's set up to possibly be used as commercial even.

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

With no allergies to hold me back, I enjoy an active lifestyle, making exercise a daily habit.