PMs are busy - if you email a PM and say "Hey PM, I'm looking at 123 Main St. and I think it will rent for $1500 a month, does that sounds right?"

You are starting a business. 

I figure this would be really helpful for anyone in our business.

The best way to grow your business is to help people and give solid advice in the forums.

I am getting a mortgage for about $175k, putting 70k down, and the rent of approx $1900 is a near breakeven cash flow investment when I self manage.I am sure there are investors out there getting better returns than this, but I am a busy working man with a family and I am playing the long game.

Scotia Bank in Costa Rica will allow you to open up an larger account as 'business owner' if you own your properties in an LLC but the process of opening an account is much more difficult. 

If you find a solid, boots on the ground realtor/PM who has experience in the flip business you should be fine. 

I'm the sole manager of the business and the properties.

Positive cash flow is what's going to accelerate your REI business.  

If you're an investor Broker / Property Manger in this business you get 100's and 100's of investors reaching out to you wanting to spend the day with you while they are in town.