I'll address each one individually once again:@David Zheng First off: well done on the 7 units at 25 years-old-man, rock on... that is awesome!

So use the rates you see published as a guide and then find a bank or mortgage broker to talk to about your individual situation to see what sort of rate you can qualify for. 

I don't think you have to have individual systems per unit that way.  

Is the 4 plex individually metered water and electric? 

Create a 10-part questionnaire and score each 10 pts on value match.

I will speak with an attorney if I can use the one EIN for business transactions for all sub LLCs within the series or I have to use individual EINs.

When I was a banker we consider someone's personal debt obligations by using a global cash flow analysis and the dscr on the individual property.

Would you create an LLC for this property now that it's rented?

My suggestion, based on recommendations by others I know who have been doing it a lot longer then myself, would be to go at it alone but always be open to partnering on individual deals.

I am looking for an agent in brevard county Florida (Mims) or an investor possibly to assist me with a propertyBackground is I own a tax lien that I can foreclose on and I have recently received several yellow letters from individuals wanting to buy it, so I was looking for an agent to see if the property I have had any value if I were to foreclose on it.Thanks