He offers to do part of the job at a fraction of price.

The basic rule here is: the higher the value of the property the better the tenant class will be and the higher the rent will be...then when you fraction that into actual returns you will find that nicer properties make less profit. 

At least you will get the planners instead of the dead beats.Personally, I would take them up on it, just give them a fraction of what the rent will be.  

I had a response that mirrored some above, but then you responded that this is a pool of some sort and now I'm completely confused, @Benjamin Lioue .Are you investing in a mortgage pool or a fractionalized loan?

It matters the size of your property and how large the new unit would be.https://www.phila.gov/media/20... [2] In the CMX-2 district, the number of permitted dwelling units is as follows, provided that, whenever the calculation of permitted number of dwelling units results in a fraction of a dwelling unit, then the number of permitted dwelling units shall be rounded down to the nearest whole number:(.a) A maximum of two dwelling units are permitted for lots less than 1,440 sq. ft. in area;(.b) A maximum of three dwelling units are permitted for lots that are 1,440 sq. ft. to 1,919 sq. ft. in area; and a minimum of 480sq. ft. of lot area is required per dwelling unit for the lot area in excess of 1,919 sq. ft.; provided that(.c) If the green roof conditions set forth at §14-602(7) are met, the number of units allowed is 25% greater than indicated by the foregoing lot size requirements, applied prior to the inclusion of any other applicable increases in allowable units, and the provisions of subsections (.a) and (.b), above, shall not apply.[3] In the CMX-2 and CMX-2.5 districts, in order to promote active uses at the street level, buildings must contain a use other than residential and other than parking along 100% of the ground floor frontage and within the first 30 ft. of building depth, measured from the front building line.

@Kortez Walker USPS will deliver to every door on a mail route for a price that is a fraction of the price of standard postage.

If it is just collect rents and serve as a portal for tenants, there are plenty of online services out there that let you do that for a fraction of the price, and since you are in the area it seems like not much of a stretch to get any major repairs accomplished.

From decimal fractions one book ran on onto logarithms, the use of mathematical instruments, operating the chain, circumferentor, surveying by intersections, changing the scale of maps, leveling, methods for mensuration of areas.

Or, it could be a small fraction, perhaps $25-50K.Connecting with the "alpha" child of the owner will likely get you the most traction in pursuing thus opportunity. 

For example, here in TN, you could buy investment property all day every day for a fraction of the costs in NY.