Myself I am prior Navy, served with Special Boat Units....now referred to as SWCC.I'd be curious to know what the answers are to your questions as well.

I have had clients come up with all sorts of stuff days after closing and my answer has always been the same.

I also feel that the knowledge I gain from doing investing benefits my buyer/seller clients.

My PM has advised me that they have a different client who has successfully fought the appraisal, but it took about 3 years, and probably cost a fortune in legal fees. 

@Justin Feldstein this is primarily what we do for our clients. 

Second, your PM should be providing you with an analysis of market rent, they have access to what their other clients in the area are currently charging.Once you have a solid market rent, your PM should let you decide how much to raise rent, unless you want to hand that over to them. 

You are better served looking into areas suggested:  Dundalk, Brooklyn Park, and some areas in Baltimore City. 

Served him with a eviction notice and the s.o.b died before I could evict.

As agents, we can't access the exchange directly but when we rate up the house in a particular company we run reports before finalizing the sale.I usually recommend to my clients that they ask the current owners if they have had any claims in the past 5 years and what happened.  

I have worked in the 1031 space doing commercial replacement properties for about 12, but am now looking to set up a QI as per requests of a lot of my clients.