If you are investing in an entity, you should consider using a program such as Quickbooks.

However, someone was telling me about the "Family Opportunity Mortgage Program" and understood it could be used to in conjunction with a HUD house purchase.https://mymortgageinsider.com/buy-home-for-elderly...However, even without a straight HUD purchase, if I am reading this correctly, I could still purchase a house for much less than 20% down.

You don't have to run your credit with each one, rather, ask what programs they have available for investors & GC's like you. 

For example I have several investor clients currently utilizing separate exceptional programs..- 10% down with no PMI on 1-4 units investment properties - 100% LTV for medical professionals - 30% down on an as is coastal commercial property in the 6%'s..Just having the right lender can completely change the parameters, potential, safety or profitability of an investment and none of these particular transactions happen without that considerable and valuable preparation. 

You can go as low as 15% for a purchase using this program and cash out up 80LTV to tap into some equity for scale.

Loan programs change and having an expert will save you money in the long run. 

There are still programs out there that can do HELOCs on investment properties.

My name is Tony, and I work with the Biggerpockets Featured Agent Program!

My name is Tony, and I work with the Biggerpockets Featured Agent Program!

Find the right lender who has access to this type of program.