I am sure there are horror stories out there with others, but the experience I had was very fulfilling. 

Would waiting until this is fulfilled be advisable or getting creative and starting now.2.

They met criteria, except their job is new which made them fulfill the criteria.

It ensures that you can maximize your returns and fulfill your investment goals.

What percentage of signed leases fulfill their full term?

You could just continue with your prequal and when the time comes to refinance, then just go ahead and refinance the property after any necessary seasoning requirement is fulfilled.  

Or is it common for a buyer to write up a contract of multiple properties that you have to fulfill?

In my area, that includes the following:Race, Color, Religion, Sex, Familial Status, National Origin, Disability, Military Status, Sexual Orientation, Age, Creed, Marital Status, Gender Identity, Source of Income, Immigration and Citizenship StatusBeing 19 y/o, the tenant is feels that this is unfair treatment based on age.

Let the seller know you want to buy the property but to fulfill your requirements to FHA one unit has to be vacant.

Injuries to warehouse / fulfillment workers have also been reported due to improper safety measures in the interest of expedience (i.e., "small government").Re: Food stamps ...