His lease doesn't end for three months, so give him notice that you can't afford to charge less than $1,000 a month and suggest he move to something more affordable.

Quote from @Jacob Sherman: Log cabins are tough to finance on the exit  @Jacob Sherman Any suggestions how would someone secure financing for land acquisition and then log cabin construction?

Additionally, C and D assets have lower rents, but roto-rooter and Home Depot don't care whether you get $500/mo in rent or $5,000/mo.  

I am not able to add it to ibooks on my iphone

Additionally, explore markets with low vacancy rates and increasing rents, reflecting a strong appetite for rental properties.

Any suggestions on what to do?

Additionally, finding a mentor who's achieved success in buy-and-hold investing can be incredibly valuable.

Rather than go into all the specifics I would suggest you read some underwriting books to understand how to analyze these larger deals.A few that come to mind are:- Multifamily Millionaire Vol 1&2 (Bigger Pockets) Multifamily Millionaire Book Bundle – BiggerPockets Bookstore- Hands Off Investor by Brian Burke-  Definitive Guide to Underwriting Multfamily by Robert BeardsleyThere are many others out there, but I would suggest starting with those.

Anyone with experience in Baltimore have any suggestions? 

In addition, if you pull $50K out of that property, you'll be sitting at 90% LTV.