For the security deposits - since we will take over is the seller required to transfer those funds to us?

Most S8 tenants have a history of bad decisions and from all that, many have only learned how to game the system.We embrace S8 applicants, but screen them just like any other applicant.Many have an entitlement mentality and try to leverage their S8 voucher and pretend to be helpless:1) A percentage won't apply because they expect a landlord to waive application fees for them.2) Many cry broke and expect a landlord NOT to charge them a security deposit.3) Many of those same S8 tenants trying to avoid paying a security deposit, won't make an effort to call the list of nonprofits we send them that will pay their security deposit if they apply.4) A lot of them try to avoid paying for utilities.

You will receive the security deposit in Checking but then transfer it to Savings.Savings: Hold the deposit here so it's separate from operating funds.

From cozy cabins to expansive luxury estates, there's a wide range of opportunities for investors here. 

Imagine closing on a vacation rental that can't secure a permit?

You are going to blow a lot of money for a false sense of security that a good insurance policy can protect you from and save you thousandsThe LLc is the most overused and money waster used on single family rentals.

It could be helpful to have a real estate attorney look over these agreements for added security. 

Most investors  who pursue alternative lenders aren't able secure bank financing because they  lack the creditworthiness, experience or the deal doesn't pencil.

Why don't the banks simply charge a higher interest rate to secure the business and cover themselves?

Your spread of counties is way too wide which means you don't have a plan and must be using some data to suggest this area may be worth it, but what's your goal?