There are investors that either specialize in a particular niche or deal in both.

Yes you need a RE niche firm but tax prep without proactive year round tax planning is not very valuable.

Can someone answer my technical question please?

Expanding on this market niche, the most recent real estate transactions I've participated in, have all involved sellers in their advanced age whom have accumulated considerable portfolios and are in the process of liquidating or recapturing some of their very hard earned investment and equity. 

My agent is saying we still technically have to negotiate with this guy, I'm just trying to get an understanding why.

This is my niche and I love it because I get tax write offs such as interest and depreciation, rent bumps, and  a steady passive return while the tenant builds me additional equity. 

This is the person who ensures the implementation of the overall strategy of the business.In the mobile home park investing niche, I have found a near-limitless opportunity in underperforming parks.

You might be able to find it floating around somewhere but technically they're only for students

There are is one niche commercial loan program that allows for 80 LTV cash out refinance with rates in the high 6s on a 10 YR fixed loan with a 30 YR amortization schedule.Hope this helps and good luck.Regards,Scott Miller

Once you start talking to more people in the niche, you'll get a better idea of the process and whether or not you want to pursue buying in this niche.