Don't accept ANY excuse for late rent.

I spoke to a  real estate agent friend and they said that I will need the social security number of the previous owner to sell or list the real estate that I got at the sale.

They wouldn't accept that.

Multis are incredibly rare with incredibly high demand, you just won't get an offer accepted being at that bog of a competitive disadvantage.Also with FHA, you wont find a 4 unit in the area that meets the FHA self sufficiency test if you use a low down payment on it.

I was accepting bids for a parking area expansion.

It's also acceptable to hold tenants accountable for consumables like light bulbs, smoke detector batteries, or filters in the refrigerator.

Ask the agent what is acceptable proof of funds and if a letter from your lender would suffice just google POF and you'll find a site to get one.

It is the idea that "socialism works" when in reality it doesn't.

In Virginia, I can accept partial rent payment "with reservation" so I'm still allowed to evict, but some states are different and accepting partial payments may halt the eviction process.        

My last two duplexes had offers accepted in less than three hours.