I've seen people ask for bank statements verifying rent deposits (not always easy to get from sellers).  

I have heard mixed responses on whether to charge both first and last month’s rent and a security deposit, or just first or last month’s rent and security deposit.

I was considering another mentorship, $19k+, even placed deposit, but just couldn’t come up with the rest of the $19k, then I checked out SubTo, $8,800 but lifetime access to the community, I was sold!

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.

Are there escrow accounts to hold deposits? 

There you will be asked your criteria and then after answering a few questions you will be matched with 3-5 agents or loan officers in your area.

Youre much better off doing some independent research on Reddit, Youtube, and here (like youre currently doing), figuring out what dimensions and style you need, and then going to a bigbox store and ordering/finding something that matches.

The LLC also guaranteed a number of months rents and was going to hand me the substaintial non-refundable deposits from the tenant.Ultimately I decided not to pursue the property.

Give them 24 hours to pay the security deposit and sign the lease.

It does not provide banking accounts for deposits/and to keep units separate.