Property, realtor, lendor. Am I missing something?

[Bryce Young]

I'm a first time investor that has found his first property. 

I have been browsing trulia, realtor, and zillow for a few weeks. I found a property I like. I connected with a realtor from Keller Williams Realty. He said banks can be hard to work with (and can take awhile) and recommended and connected me with a lender. The lender will call me tonight and after being pre-approved I plan to find a house with this realtor. 

Am I missing anything? Should I be careful in trusting both the realtor and his suggested lender off the bat? 

This is my first home and first real estate investment. I dont have money to lose and I just want to make sure I'm doing things right. 

Are there any other steps I should take to make sure this investment goes as planned?

Thanks in advance, 

Bryce