The FHA says that examples of such problems include but are not limited to the following: Missing handrailsCracked or damaged exit doors that are otherwise operableCracked window glassDefective paint surfaces in homes constructed post-1978 (because of lead paint hazards)Minor plumbing leaks (such as dripping faucets)Defective floor finishes or coverings (worn through the finish, badly soiled carpeting)Evidence of previous (non-active) wood-destroying insect/organism damage where there is no evidence of unrepaired structural damageRotten or worn-out counter topsDamaged plaster, sheetrock or other wall and ceiling materials in homes constructed post-1978Poor workmanshipTrip hazards (cracked or partially heaving sidewalks, poorly installed carpeting)Crawl spaces with debris and trashLack of an all-weather driveway surface=================There are many areas, however, where the FHA does require problems to be remedied in order for the sale to close.Electrical and Heating The electrical box should not have any frayed or exposed wires.All habitable rooms must have a functioning heat source (except in a few select cities with mild winters).Roofs and Attics The roofing must keep moisture out.The roofing must be expected to last for at least two more years.The appraiser must inspect the attic for evidence of possible roof problems.The roof cannot have more than three layers of roofing.If the inspection reveals the need for roof repairs and the roof already has three or more layers of roofing, the FHA requires a new roof.Water HeatersThe water heater must meet local building codes and must convey with the property.Hazards and NuisancesA number of conditions fall under this category.

Another thing to consider is you can purchase a thermostat controlled plug/switch that can alleviate anyone having to switch on and off the heat source.

Also, if my sources are correct, does that mean assignments aren’t allowed to be practiced if you’re a realtor in PA.

Is it based off of features (like having a fully functional kitchen and separate entrance), the share of utilities, intent, or all/none of the above?

Wholesaler is just a lead source.

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I am a syndicator and help other investors source financing (private and institutional) for deals. 

For example, if you are looking to connect with other members near you, want to learn from people in a specific area you’d like to invest in, or have a desire to find people interested in certain topics, you could start your search here: https://www.biggerpockets.com/search/usersI really like the alerts feature that can quickly guide you to current topics that might interest you: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

As far as I can tell, this is their only source of income.  

I would recommend pulling list from sources like ListSource and myreipro are a good website for sourcing leads as well.