No matter what you do or try to do, you will never be able to improve your neighbor's property.  

From some articles I have read though it sounds like exterior upgrades tend to have pretty good ROI, replacing the front door with a nice new steel one in a color that works well with the house, and new siding (or stucco or brick treatment) can be quite a good improvement in the look, that usually has pretty good ROI.

But you can't give any guarantees to the seller.If you leave the tenant buyer to their own devices and do not consul them on improving their FICO score and their debt to income   But doesn't look good for you as a lease option agentI recommend you look at upgrademycredit.com and ask for Blair Warner, who has a huge amount of experience helping people increase their FICO Score, and in  loan origination in generalAnd he resides in the great state of Texas, but does increasing of FICO score consulting business in all 50 states.

Replacing a window is a capitalized expense, the landlord is to depreciate that improvement, a residential tenant can not depreciate it and not treating the expense/improvement properly for taxes becomes a matter of filing false returns.

It's hard to see how the small advantage of a few weeks is worth the unbounded liability of operating without insurance.2) The seller may discover prior to closing that their property has been improved.

I went on from High school to join the United States Air Force and was first stationed at Seymour Johnson Air force Base in Goldsboro, NC in from 1987 to 1993. 

I went on from High school to join the United States Air Force and was first stationed at Seymour Johnson Air force Base in Goldsboro, NC in from 1987 to 1993.

I went on from High school to join the United States Air Force and was first stationed at Seymour Johnson Air force Base in Goldsboro, NC in from 1987 to 1993.

I agree with Aaron, that the group struggles because few people have taken the initiative to improve it.

Built in 1920, recently renovated top to bottom, new central air throughout house and new heating system.