Prior owner had professional treatments done, they just couldn't be bothered with the effort required to vacuum the dead ones up afterwards.

There were signs of termites in some old wood in a pile in the back and I had a treatment completed. 

So in many/most/all jurisdictions you'd be giving up favorable tax treatment (homestead, etc.) taking title as an entity.

After a few years of this treatment, some contractors can't even bear to return a call...same old, same old..... 

Note differences between comps (1 more bedroom, 300 less square footage, not located next to a toxic waste treatment plant, etc)3.

., boiling water poured down the mound) or any one of the chemical treatments the big box stores have to deal with them.

A letter from a licensed medical professional in the State where subject property sits that states that the specific emotional support animal is a part of tenant's treatment for a qualifying mental condition is the federal law.

@Timothy Burnes Don't do it. 10-20k in equity is not worth all those issues.Bed bugs are a significant defect that can take either $5000 and tenting the whole building for heat treatment, which requires vacating the tenants or getting them hotel rooms for a few nights, or a sustained program of prevention with bed risers, leg traps, sealed mattress bags, and the tenants need to keep it up for.. get ready for it.. 6 months, which is how long they can live without a meal.Sewage in the basement could be a big issue if you have a sewer backup problem.The sinking toilet sounds like it needs immediate attention, but at least that's a straightforward repair.The other issues are what I would consider "normal" as in, you could fix them but don't need to in order to make the place liveable.Based on the bed bugs alone I would avoid... if you are comfortable with this level of rehab you should be getting a way better deal. 

In my area they are about $100/month but take care of all the treatments and cleaning.

Heat treatment is more expensive and less effective than other treatments.