But it sounds like the amount of money that is needed for closing is not that much...

well, it is actually in how the loan is structured.

So often I see people with all this money and success, but their health is deteriorating.

Or do they use the virtual banking model like Baselane and Quickbooks Money, etc?

Hi Ian,The best way to get this done is to refinance into a hard money rehab/construction loan.Not sure how much equity you have in the house but the ratio would be as following.75-80% * (Value of home+Cost of build/rehab) = Total Loan AmountWe would payoff the initial note (+ closing costs if loan amount exceeds construction budget & payoff), the rest would be in an escrow account for you to draw from as you complete your project.I would love to connect and discuss further on the details of this scenario!

An example of this would be mixing your personal money and LLC money in the same bank account.3.

The money is paid with receipts on the day of the tax sale.  

Rental arbitrage can definitely make a lot of money through cashflow if done right.

For example, I know many people who have bought a house in Ewing for $200k and it's renting for $4000+ a month and this person has put maybe $50k into it over a couple years including a new roof, updated cosmetics, and was able to BRRR out all the money.

I'm not sure where to start with private money or hard money lending when it comes to covering rehab costs on a rental property that we already own.