Other than that your only option is to increase your income through methods that you have already mentioned. 

I plan on using the BRRRR method for my first deal.

Account Closed, you might find R.

@Jorge R., I haven't heard that term either, but a quick Google search reveals it basically means making it permanent so the bank can't close or reduce it on a whim. 

Originally posted by @Ken R.

The only difference is the old method does tend to allow more flexibility to enter into new partnerships and profits splits when you set them up and purchase properties (if you decide to bring in partners).

Love it.Since you don't know what you are doing, I will try to help.Before you pick any form of marketing, the first thing you need to do is calculate the cost/ deal for all the methods you are considering, THEN you can pick one.Never go at it blindly my dude!

Find out what they do, how they do it, and maybe an idea may pop into your head about how you can apply their method to your own. 

It's a way of saying "people in the market are willing to get 4% return on net income in an A area in this market, so if I know the net income of the 6 unit subject property, I can derive what someone would be willing to pay i.e. what it might be worth".Incidentally, when people talk about the "income approach" as one of the three appraisal methods (the others being sales comparables and replacement cost), it's usually introduced for exactly this scenario - that there are usually plenty of comps for 1-4 families and buyers are more likely to look at recent sales of similar properties to determine what they'll be willing to pay, but once you start looking at 5+ units there are both far fewer comps and the buyers are investors who really are looking at cash flow more than similar property sales.Anyway, I hope this helps.

@Jonathan R.