The mortgage lender told us that for a single family home we need 20% down and for a multi (2-4) family we need 25% down.  

I want to take that money out for some investing opportunities in multi-family real estate.

The mortgage lender told us that for a single family home we need 20% down and for a multi (2-4) family we need 25% down.

The link to the blog seems to have good posts that go beyond the basics of hosting. i'll research on that.I don't have any questions about the airbnb side, like what linens to buy or accepting guests since i've had plenty of experience managing that side.My main areas are: traditional and non traditional financingmethods of acquisition (master leasing vs owning)scaling management systems (hiring people to answer questions, clean)managing a remote property in a different city (hiring local as needed property manager)and problems that come up from managing multi properties that don't occur with a single property

I want to link up with other investors here in SA that are investing in large multi family properties!

Is it similar to analyzing a multi unit or apartment?

If you are going to work with them in their time of need then both parties need to benefit and win together on the upside.How much you work with a tenant depends on location.

When I listen to courses and videos or read articles, they all say "sign the house ASAP then go into closing" and quit frankly it confuses me. 

I'm in Baltimore, MD and I'm looking at getting a 2-4plex as a first multi unit property.

I'm in Baltimore, MD and I'm looking at getting a 2-4plex as a first multi unit property.