An ideal bank would  allows one to set aside tenant's deposit money in a separate account that earn decent interest and is landlord friendly.

If the tenant violates the lease in other ways by how the treat the property issue them a notice to correct and if they don't correct the issue you COULD try to evict, BUT I would make sure the issue is VERY VERY clear cut because I have trouble believing a magistrate will allow an eviction for petty things or something that isn't 110% clear to everyone involved. 

My goal is to find one that will allow me to automate this process as much as possible.

You are allowed to switch strategies down the road.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

For example including a washer/dryer or allowing pets.

What's the lowest credit score you will allow?

In the future i can also build more since it is zoned up to 5 homes and allows for manufactured homes. 

That said, lenders may allow these transfers without triggering the clause as long as the LLC is owned by the original borrower (you).For your question about which account to use for the down payment, it generally makes sense to pay from your personal account, especially if the mortgage is in your name.

When are we allowed to ask for voucher detail programs during the screening process ?