I'll be playing around with the County website to try to find the MF codes as you have suggested.

Ask them if they will lend on line 120 of HUD-1 (..pretty sure it's 120) This process is a bit out of the box, which lenders are not usually a fan of.

Luis, as you know everything is a pain in the *** in PR, and the government has their hand out at every turn. i think some of the issues are that rents are not that high, and finding qualified people are difficult right now, especially when people are not working. it sucks, but its the facts.unfortunately the properties don't appreciate well down there, so you would be buying for a long term cash flow play. 

As @Lee Ripma mentioned "Set For Life" would be a great book to read.As far as choosing the right market... you can read several reports online (just search google for XYZ city real estate report).

I’m looking to open an online account with vanguard, TD Ameritrade, E*Trade, or maybe even the Robinhood ap with my checkbook sdira to buy REITS.

I like to rehab in LA or do more of appreciation plays if I can get a smaller bar to entry for holding.

Can anyone recommend an easy to use online payment app or method for allowing tenants to pay online and direct to my account?

Lease docs, contract docs for when our clients buy/sell houses, anything we need signed is done through there.Giving tenants the ability to pay online or with a card.

Austin proper is more of an appreciation play at this time.Duplexes in the Austin area are currently 189k to 1.8 million Tri's 600k to 1.2 million4's  400k to 1.55 millionBig gaps and the bigger the sales price the higher the note, taxes, ins etc which means less cash flow.

I've done a lot of research on it online, which is possible here, and even gone to see it (pretty recently renovated!?).