After that I got approved for an Orchard unsecured Mastercard.

Slow and steady wins the race.PS companies with ZERO DEBT: American Express, Apple, Citrix Systems, Amazon, Bed, Bath & Beyond, TRowe Price, Red Hat, AutoDesk, and MasterCard.Pretty interesting that TWO major companies thats entire philosophy is marketing the use of debt as a tool are debt free (AMEX & Mastercard)...

As far as business credit Separate ein numbers, separate llc.s   I am doing the same as personal credit building, Started with home depot , and lowe's . that's the big ones here, went from there to visa and master cards, home loans under each llc, now stating to work with dun and brad street. looks like that one is going to cost about 500 bucks. maybe after this flip. 

@Guifre Mora I only have a mastercard, how can I make it work?

I think in the '80s we didn't even have debit cards, just cash.I was making about $500 a week, so I did the Bank round-robin thing (see above), deposited a thousand bucks in a CD, got $1000 loan, paid it off in 6 months, then applied for Visa or MasterCard through the bank unsecured.But to get back to bad credit and how to make money in real estate.If you go to buy your commercial banks you're going to need a credit rating with a good FICO.And you are going to need 20% down if it's an investment property or 3% down through FHA programs up to four units.That said, how can you make money with BAD credit?

It is a card from Visa or Mastercard that has a limit equal to the amount of money she puts on deposit with the issuing bank. 

One guy claims to be able to establish $30+K of credit (through trade and visa/mastercard accounts), without any personal guaranties or use of personal credit scores, in about 90 days for a "small" fee of about $1,000 plus 10% of the amount of the credit lines he obtains for you.

They offer "PRO" credit cards, but would I be better off using a standard visa/master card or is it not worth the trouble? 

I also have a Chase Visa and a Citi Mastercard.

I use the citi double cash Mastercard. 2% cash back on everything, no annual fee.