That LLC is owned by my sister, myself and our father. 

If a cash out refinance, many lenders will allow the cash out to satisfy the reserves requirement.DSCR lenders generally let you vest either individually or as an LLC.

I just got a PO Box for a non real estate LLC.

Does anyone have advice regarding doing a 1031 exchange, where the goal is to take title back as an individual and dissolve the LLC that the relinquished property was held in (without triggering a taxable event)?

Also, should it be a separate LLC for each house?

We also used to have a LLC when we accidentally became landlord when renting out our first home (2012-2021) until we sold that property in 2021 (bought at peak in 2007, did not make much $).

I just came from the bank to open a bank account for the newly formed LLC that will hold the property I am purchasing.

He said it can be in a trust but not an LLC.

 I would first look into the state website of where you'd like to establish the LLC.

Should I also contact the owner, an LLC out of state?