what type of properties?

Think about the type of brick you have, as some are more porous than others.

What made you interested in investing in this type of deal?

Basically instead of the flat bottom of a vinyl product you have a rubber waffle underneath and an interlocking zipper type connection.

Philadelphia passed legilslation last year that severely limits the type of operations you are describing.

Thanks everyone  You will want to speak to an attorney familiar with securities laws as it appears you are providing financial advise and would need to get some type of FINRA license 

A lot of times, these types of lifestyle choices will start limiting you down very quickly to specific areas, and since you are going to be living in the property, are likely to have a heavy weight on the neighborhoods.  

While these types of properties can offer investors a great opportunity to make a profit, it's important to carefully evaluate them before making an offer.

What made you interested in investing in this type of deal?

The only down side of the area is that all types of properties are more expensive.