Another option you could explore is HELOC since you have equity.

Credit is 800+.I have ~$120k in an inherited IRA that I could liquidate as well, but would prefer not to if at all possible.House #3 is least priority and could be used to offset the cost of the buyout on #1, but it cashflows so if I can keep it that would be great.I know it's a tough rate climate, but I'm looking for any creative options, and lenders who operate in all three markets that could help streamline the process. 

What are the options I have and any idea on rough cost estimates etc.

We've moved to updating our list of properties for a given state once a year and updating ownership data more regularly through Direct Skips Property Search option.

I have never heard of a limited-scope appraisal and will look more into this option.

My tenants (less than 5 units) usually pay with a money order in person, but I'd like to have another option that also doesn't require a bank account. 

Foothills area is a great option. 

Alternative options include a cash purchase, requiring significant upfront capital, or a hard money loan with higher interest rates.

There are not many multi-family options available in my local area, and the ones that are available are overpriced or the current rent rolls are extremely below market average($200-$400 per unit).

What are my options at this point as a landlord?