Keep in mind, you should have already had a conversation with the hard money Lender to know their terms and process, and be ready to perform. 

Move the money in and out as tenants move in and out.You need two accounts: checking and savings.

If I need by some chance I need extra money I can fund it with money from my side business.

The biggest question you need to ask yourself is if you are doing this to afford a property you otherwise couldn’t afford or to save money period, that will lead to very different conclusions about where/if to buy. 

What would your do to figure a proforma that supports and offer for a profitable property?

I was out of college (just earned my degree in Culinary Arts) and was constantly running out of money.

As you may have found in your search, there are lenders that will lend up to 80% of the appraised value on investment properties and don't require an appraisal.Let me know if you'd like me to point you in the right direction.I have not; I'm still working on acquiring my next house hack, but when I need it, I'll probably use a combo of hard money and margin loan.

I want to make money when I am sleeping or not working. 

I tend to save the most money by being able to do my own stuff up to code. 

I lost my money, Hope you don't!