I plan on riding out these purchases for 6 months to a year to get a feel for the process and hope to have a multifamily unit in my possession in about a year. 

Simple he said/she said situation and Suzie will have to deal with her temporary "guest".If there is a official lease in the possession of the new tenant then it is again Suzie's problem not yours.

I don't think you will have a problem.2 as long as you are not representing others and you represent yourself only -- you do not need a brokers license.3 you need to have an agreement with the seller that says you have right of possession or right of entry by appointment to show the house to your assignee.4 you need to make full disclosures, let the seller know that it is your objective to earn a reasonable profit.

I handled a similar title claim where the title agent had issued a policy to someone in your situation and inadvertently did not take exception for a party in possession. 

Whoa, whoa, whoa there pauly;The "deed" isn't something that you "possess".

It gives the buyer possession of the property.

But if they can give you possession of the property then you are in good shape.

I am still having them come for repeat visits to ensure completion of the job.My renter was already in the property when I took possession. 

Owners’ insurance does not cover Tenants’ possessions or Tenants’ negligence.

She had a toddler and we advertised her apt.A candidate came who had a really good FICO score (720), but owned a tattoo parlor, so his income was all cash.His GF had W2 income that was just short on qualifying and also had a good FICO score.He also disclosed that he had a felony for MJ possession 25 years ago when it was very illegal to even carry it.He's been clean since.