I really need help installing systems and finding the gaps in my business.For wholesalers doing it it full-time or those generating consistent weekly to monthly deals, what's your advice on taking you business to the next level.

This is called a Lead Generation Magnet. 

I've got enough houses to generate $20k gross per month, I work 60+ per week and I live overseas without a property manager. 

If you knew how to create high quality, professional deliverables for clients you would increase your value to an employer and within the industry.

I'm self employed and find it hard to make the time, but I've got to do what I have to do.

If you don't know how to do this, then find someone who does and let them work the file.Right now, the only value you add is as quasi-lead generator.

I currently exercise a buy and hold strategy, but have decided to do a couple of flips in between rentals to generate extra working capital.  

If you are self-employed or own a small business your best option would be self-directed Solo 401k plan, which comes with number of features that are not available with self-directed IRA, and you don't need an LLC to gain checkbook control and custodian is not required.This topic have been discussed here on the forum many times, in length... so I suggest to start you search the forum for the related keywords.

Selling property generates cost, dwindling profits.Me personally I don't trust myself selling one of my properties and finding something just as good or better. 

The price of a house with this income probaby should be no more then $400,00 if it generates $4,000 a  month in rent (including a rent assigned to john)