This tenant has ignored my warnings - to stop smoking in the unit (multiple times), having unauthorized guests in the unit without my permission, have spread rumors and lies about me throughout the neighborhood, and have ignored my texts (only method of communication).  

Then, run your numbers on the potential STR income - what are your expenses going to be (they will be more), and what is your projected income based on looking at competition in your area on the sites?

. - I would suggest posting here on biggerpocket in the classifeds section, on real estate Facebook groups, and find some local agents/wholesalers.Make the downpayment and interest whatever you want based on your current needs. 

There are still areas where you can buy units for $200k/ door but they require a lot of work usually and covering all operating expenses and interest payments can be challenging base on low-ish rent levels in some places.

It sparked a passion within me for real estate investing, particularly with the dream of building generational wealth.I'm based in the vibrant Denver, Colorado area and I'm reaching out to this community with hopes to connect and network with fellow investors.

How would you screen high quality tenants based on what criterial; credit score?  

Best regards,Rob Hi Rob,I primarily sell vacation rentals in OR & CA and have written previously on the value of attractive and quality furnishings as part of a successful STR.

Just want to figure out if agency debt is based off of the agency or the lender specific spread.

Not only are you new to lending, but - even if it was a secured loan - I"m guessing based on the amount it'd be in second position.  

I am based in Minnesota and also have connections in Louisiana.