They have failed to renew my entities with the Secretaries of State multiple times, have billed me wrong amounts, and GREATEST OF ALL, have cost my business ~$50K in cumulative TAX PENALTIES due to negligence in filing for a tax extension, failing to walk me through my tax filings and needed payments, and failing to file an abatement promptly.

I cash flow them to buyers on lease options with a hefty option payment up front to me.

Maybe a better question would have been if you know how much money you have for a down payment on a property? 

Not only would it decrease your monthly mortgage but you'd be able to get into it with a very little down payment since you'd be living in one side of it. 

You'll likely need a higher down payment if you can find anyone willing to finance something like this as a first time investor; many require some level of rehab experience at the very least.

Set up a Joint account with the seller so you can make deposits to continue the automatic payments to the lender until you refinance the property.Thanks,Dustin

What would stop him from just not coming back to finish once he gets the last payment from you?

QB really is not made well for landlords and landlords leave QB every day for better software, payment processing is really expensive, and with QB there's no tenant portal for your tenants to schedule payments or push maintenance requests. 

Down Payment: 20% of the purchase price, equal to $43,0003.

To qualify for a loan, focus on having a credit score of at least 620 (or 580 for FHA loans), keeping your total monthly debt under 43% of your income, and saving enough for a down payment and closing costs—about 5-10% of the home's price in total.