But I'm guessing maybe your credit is too low for that?  

Depending on local regulations, you can mix up STR/MTR/LTR. 2) Get systems in place in those exact cities; 2 PMs preferably via NARPM, 2 high quality inspectors, and rotating book of handyman, 1 lawyer, and a credit union contact for leverage along with investor friendly nationwide lenders.

Have about 50k I would invest (access to more), with excellent credit and good income too, from my full time job.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Norada was basically borrowing and owing unsecured debt, like a revolving credit card debt.

Id go right into looking at local credit unions and small community banks for HELOCs (lines of credit) so you can have a lower blended rate and draw/payback as you please.For the 3F - Since this is free and clear, you would only be looking at 1st position options here in the world of financing.

House HackAttend as many REI meetups as you can to grow your network of investors for referrals, help through challenges you may incur but don't have experience with, and learn from proven guest speakersNetworking app like blinq to compile all of your contacts for REI in one area with phone and emailbegin conversations with local credit unions exploring what type of loan products they offer

Either way if you personally guaranteed the note, yes it will affect your personal credit no matter who the property is titled to.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Lenders set their own terms which can be more favorable to investors with a lot of properties.