Since they are new tenants and likely not screened properly you want to be able to easily get rid of them if they do not work out.

It's a lot of work owning and managing investment real estate and you can put in a lot of time and not necessarily make any money if you don't get the proper financing in place.  

Any other type of sale: depending on your offer price just make sure the building is standing and you have the proper contingency in your contract.Inspections once under contract: Depends on your knowledge level.

That's how I got my current house hack duplex.I second what @Ali Boone said in that most realtors have NO idea how to properly underwrite an investment property.

Couple that with the fact that the highest and best use of the multifmailies that we do have in DC proper is as condos,....as they are converted into condos that further exasperates the possible supply of multis.So it is absolutely possibly to buy a multi here, but you would need to be realistic on your price.  

Just ensure your costs are properly accounted for when analyzing a house.

Sure, first you need to be an established business with a proper license.  

The resulting cost segregation study will provide full documentation on every asset within the property and place each asset in its proper class. 

I will go the extra mile to ensure they are happy with the finished product, because it's the right thing to do.It's a bump in the road, but I've learned so much about my personal flip business locally, about my morals and how I'll react to bumps in the road, and more importantly how I respond to turmoil.

So you need to follow the terms of those leases for proper notice period of rent increases, or non-renewal terms if you want them to vacate..