First time investor with some questions

[R S]

Brand new member and hopeful first time real estate investor here. I'm very happy to have found this forum!

Because I only have around $15,000 liquid to invest, I'm looking to purchase a single family condo/townhouse as my first rental property. I'm hoping to put $15,000 down and leverage an additional $50,000-60,000 through a mortgage. I have a few basic questions about which steps to take first.

After forming an LLC, should I go and get pre-qualified for a mortgage first? Or should I begin looking for a property first and then get pre-qualified?

Speaking of getting pre-qualified, is it better to contact banks directly, or to go through a mortgage broker?

Should I work with a buyer's agent, or should I check listings on websites and then contact the individual agents when I see properties I think would be suitable? Is there a benefit to using a buyer's agent and doing everything through him or her?

Thanks very much for the help!