It would be nice to be able to search, for example, on properties where the mailing address differs from the property address or for properties tagged as non primary residences for targeted tired landlord marketing.

go to REIA meetings, go on Facebook, talk to agents, talk to property managers, talk to everyone.

For investment property, I would say commonly you are going to have 80% to 75% LTV. 

I'm planning to buy my first rental property.

Are the multifamily properties in those places profitable?

While I don’t currently own any property, I’m actively looking to purchase my first one and eager to learn everything I can about real estate investment and Airbnb hosting.

The proceeds used to acquire the property will be from my solo 401K.

Typically 1k and up depending on property value and competition for taking it off market.

A DSCR loan allows investors to qualify for real estate financing based on the property’s rental income, not their personal income.

Would it negativly affect my mortgage, or do I need to notify my lender at all to build the second home on the lot and then figure out the lot split later if it's necessary for renting or selling the new or original home?