Saying Hoover is expensive is true, but it's less expensive than Vestavia, and about the same as Trussville.A good rental depends on what you are looking for.

As a Canadian, I need the help of experts who can help me understand lending, legal, and tax strategies and implications.

@Tony HerlambangI recommend people talk with a lawyer to setup and LLC because it deals with liability rather than taxes. 

I would recommend reaching out to the county tax commissioner or treasurer for guidance on the tax sale guidelines as they may vary by county.

They owe back taxes(3500) and I'm sure they do not have the funds to make repairs.

As a result, it seems the value is really just very long-term and if we sold it in the future, any repairs and taxes would cancel out much of the gains (depending, of course, on the pace of appreciation -- who knows what that'll be?). 

You would have to contact the current housing committee and fill out a rent adjustment form, if approved the portion between the housing committee and the tenant depends on what the tenants income and ability to pay and all of that will be listed on the confirmation

Depends on if crawlspace or slab...depends on if you can find a dependable plumber you trust. 

I use them in just about every flip and even some new builds depending on the price point.

Some validity periods range between one to ten years, depending on the reason for which the NDA is made.Those who do not state a period usually relate to technological research and development.