You don’t want to shop at the local home depot every-time your GC needs something.3) Apply for 0% interest credit card for all your material buy and keep it rolling for 12-18m.

Or do you hire a pool service and roll it into the rent? 

Find a QI and get them in contact with escrow to get the ball rolling.

Or if you just don’t want a job ever you’ll need to find seller financed properties and use your $50,000 as reserves or for light rehabs until you can roll them into DSCR loans eventually and get some cash back out through refinancing them to do the next deal because eventually the $50,000 is going to not be enough.

Looking to purchase a rental property for $330k, leases are already in place for the following year and rent roll is $3200 per month.

There's a couple things - you can get bridge funding now or some type of private money bridge/construction loan that will give you acquisition funds, so that you can acquire said building and then take the time to get your permitting squared, and then roll into construction portion once ready. 

If I had not extracted value I would be rolling in cash flow. 

If you're just starting and don't have time to deal with a lot of potential issues, turnkey is a great way to get the ball rolling.

Before your loan closed, did you roll into the mortgage 6 months of your mortgage payments? 

@William Anderson you forgot the option of rolling IRA  and old 401k monies to a Solo401k and then investing in RE.