A vacant multifamily is hard to finance, you may have to access hard money or raise capital from investors.  

Just received an email from them notifying me that they are going to shut of the service in 10 days and they might need me to "provide the access to the property, if my tenants wouldn't cooperate."

I have access to on and off market properties.

I'm ok will selling the property if it will help me acquire a better deal.

One thing I heard you say, is that you don’t need to be an agent to access the MLS, but I’m not sure I heard exactly how it is that non agents can access it.

I have recently acquired some information on multiple redeemable deeds in these counties.

Oakland County has a nice online database you can access at Oakgov.com. 

Should we look into a hard money lender and try to acquire two or more cheaper properties?

This allows you to access home ownership with some of the low down payment options while still furthering your investing goals.

You've accessed the gain through the refinances.