Step one get a lender? - Mortgage broker recommendations Dallas, TX (or surrounding)

[Rebeca Enriquez]

Hi! I am 25 years old, since I was 9 my dad made me read the book Rich Dad, Poor Dad, and 1 year an a half ago I was transferred to USA from work, in that book he talks about financial freedom and real state, so  I recently bought the book how to invest in real estate, by Joshua and Brando (I am still on page 120) however with each page my interest increased, which lead me to this forum. Readying all your stories really inspired me. 

So I took action, I know nothing, so I thought the fist step would be talking with an agent and get an idea of the market value, make numbers, and then look for options to finance the asset. However I call one of them explained my situation, currently starting, getting to know the value and look for lenders, however his answer was not what i expected, he let me know they are looking for investors with money so they can help them...

So I was wondering If you have any advise/opinion/comment on;

Would the fist step  be get to know to what financing amount I have access to, based on my employment and credit score?
Should I look for other agent? 

Do you have any mortgage broker recommendations in Dallas, Tx (or surrounding areas).

Would affect if I am not USA citizen, but an employment based resident?