These are DSCR loans. 20% is the min/most common down payment for this loan type. 

What other filters would you use to limit the list but stay with the strategy regarding the type of homeowner I'm targeting? 

The seller isn't willing to discount, or give any types of seller or creative financing for this or the others..

What is this type of loan called and who does it?

I want to rent it out but I’m conflicted on the type of single family home and price budget I should go for.

The later, focused toward field operations, finding and managing the field type things, materials, vendors, doing field work also as a working foreman does. 

Some type of electrical either a landlord portion for certain central lighting or else when the account reverts back to you upon vacancy.

Diverse borrowing history (the different types of loans) and quality of accounts(A+ issuer like Chase and large limits over $10k) will help build a strong and healthy profile that will allow you to get approval for loans and make your scoreAbsolutely stay an authorized user as this is likely giving your alot of payment history and driving the average age of your accounts way up.Hope this helps and if you want to talk through it some more always down for a chat

I have other w2 income right now but not planning on having it much longer if things go as planned.I understand theres various types of commercial loans, are there any commercial loans structured similarly to a residential 30 year?

Also search for 30+ day stays on Airbnb in your area to see what type of listings there are and look at their calendar availability.