I live in Southeast Michigan and I am interested in the BRR method. 

When used right, the BRRRR method can allow you to buy rentals at a discount because they need work, and refinance most of their money out because they added value through repairs.

He wants a clean sale.

My points are: 1) finding a good deal will provide your best in 2) there are different methods of learning the skills needed to be a successful RE investor some of which may not be glamorous.Good luck.

Unless you have a very fast method of paying it back you run a very heavy risk of the rate increasing to a place where it could harm you in the long run.Feel free to tag me if you have any questions.

One of the best ways to go as described by John Jackson in Tarrant County (Ft.Worth in Texas) who teaches this method for about 15 years and has developed a good sales contract that gets you paid before the product sales and he usually quotes the list price to the owner in a fairly nice area.He usually calls houses For Sale By Owner in decent areas. 

We are trying to set up an entity to buy-and-hold this property and I'm unsure if the best method for this is a Series LLC or a C corp.

For example a dated kitchen with walls yellow from cigarette smoke and a 60 year old oven is fine, a kitchen that you can't cook food in is not fine -- even if it is otherwise modern, new, and clean. 

The more I look into wholesaling the more I’m realizing that this method does require quit a bit of time to put all the pieces together.

Scott,There are several items that you need to think about; common area cleaning, common area utilities (electrical at least), laundry room upkeep, fire alarm servicing and possibly monitoring, etc.