Sellers generally want cash before bank financing before seller financing.

Your US bank won’t finance in Belize.If you’re talking a loan in Belize.

Secondly how does a bank look at it?

Some will accept a HELOC or cash-out refinance as liquidity, while others require liquid cash in a bank account.

The bank doesn't notice the change itself, but they do notice that the name on the insurance policy has changed and they send me a letter demanding I explain why.

If your really needed it one could also consider hard money though that will come with higher rates and getting someone to give you 300k first time might be harder than just getting loan then you could refinance it later.Since your a high net worth person I would also try talking to local/regional and even big bank lenders.

Is this a red flag to banks for getting approved?

I do not have any loans through Flagstar Bank, but I would talk to them prior to moving it into the LLC.

As you progress your bookkeeping business, you'll likely want to learn how to export statements from a variety of property management platforms, as investor books are housed in bank accounts, spreadsheets, and a variety of property management and accounting software!

I had issues with linking a bank account to their "Stessa Bank account".