They would have to deal with the ejectment once they own it .  

I need help in finding out the process in philadelphia on how to go thru the complaint in ejectment process 

Can I legally evict or eject him? 

Citi would have to file an ejectment action to force you out whether you have a written rental agreement with the acting landlord or not.  

I have a lawyer friend (that doesn't specialize in real estate) who has started the eviction process by writing up a complaint in ejectment (which took 3 weeks to be served because he avoided the sheriff from serving him) but the guy has hired an attorney and is fighting this to buy more time.

From a company name property Crafters LLC stating that they bought a tax deed on my property so I go look into my property tax records and there is no record of me owing the county any property tax money then I look farther back in the history before I purchase the property it was a couple under a different name that had delinquent taxs but it didn't have anything to do with me because I purchase my house through Fannie Mae foreclosure and that the closing from my understanding there was no property tax outstanding so this company property Crafters  is trying to eject out of my house for not paying someone else's taxes me well for the last 6 years I've been there I been tax-exempt since the purchase of the home so I don't owe Jefferson County any money at all or this other company because obviously they bought a tax deed based on the owner back back taxes before me so I am ready to Fight tooth & Nail before I give them my place of residence for someone else's error

If I am not mistaken the only legal fees you can charge are for ejectment costs so you definitely don't want to play the redemption revocation petition game, those legal fees (Think $500 an hour in Attorney fees alone) could easily kill any profit you did have and if you lose you could end up losing your entire investment and then some. 

"The Civil Filings Department of the Forsyth County Clerk’s Office has paperwork for money owed, possession of property and summary ejectment (eviction) proceedings.

Can someone refer me to a Birmingham, AL attorney that can handle a possible ejectment or foreclosure?

If you can't do that, you might have to file an ejectment lawsuit and wait another 3 years.