The vast majority of successful real estate developers and investors I have encountered are home-grown and hustled their way to success with no MBA.

@Charlie Moore there are limitations for many states re application fees due to landlord scams. 

I initially thought it was a scam when the leaseholder showed up 2 years after I had closed on the house. 

However, it has been super clear they are scammers so I have not followed through to see what is the ultimate plan to scam you.

The skeptic in me says this is a scam.  

Most of the problem loser tenants you encounter in your landlording career will be inherited tenants through a purchase .

Roth IRA seems like a scam to me.  

I have been underwriting many deals in my market and have encountered a deal requiring loan assumption on a 20-unit apartment.I have many questions to ask, but I want to understand from here before meeting the owner's bank and outgoing owner.Q1. what are some of the fees besides assumption and processing fees to anticipate?

some other items like :detail home inspection - roof+basement ($299) eviction fees($250), civil penalties because tenant did not maintain the property - land lord (me) had to pay in civil fines - appx $300looking to see if anyone has encountered similar situation and opportunity to file these expense as expense ??

I've been an environmental lawyer for over 35 years and have encountered only one home tank that exceeded $100K and that was an extraordinary situation where there was pressurized piping with a diesel tank and where the consultant committed fraud by over-excavating the site. most home heating oil tanks will range from $10K to $20K with costs approaching $50K-100K where groundwater is impacted and used for drinking purposes.