That's how security issues gets fixed.

My main concern is whether it's hard to meet their criteria for properties and secure funding.

Secured creditors in order to take the property are to put in a motion to lift the stay.

If you think you might get kicked out then housing security might be worth upping the payment. 

Seller Financing I am the buyer with 30 days to purchase the property and want to simultaneously market it as rent-to-own,  how can I structure the process effectively:Can I structure the deal this way, so I can secure a tenant-buyer while working to close on the home myself,  minimizing my risk and creating a win-win situation.

We had to wait out the First Look period, but once that passed, we secured the property below market value.

If they don't you personal financial situation plays a bigger part in securing a loan. 

IMO I do not believe they properly screened my tenant, just placed a tenant so they wouldn't have to cover the mortgage until a proper tenant was secured.

The vast majority of lawsuits against landlords involve wrongful eviction, security deposit disputes, and Fair Housing Violations.

The key is to secure financing options before finding a property, ensuring you have enough funds to move quickly when a great deal arises.