Here are a few points that I've picked up about doing partial interests.
- *These partial interest appraisals result from either tax situations or partitioning actions such as divorce, dissolution, or something similar.
*In tax situations, IRS wants the effective date to be either the date of death, or the "alternative valuation date" which is exactly six months to the day forward of the date of death.
*A partial interest is not equal to a proportional percentage of the fee simple interest.
*Typically, the value of a partial interest is reduced from its proportional value by discounts for marketability, control, and/or liquidity. IOW, a 50% interest in the fee simple value would be further reduced for those factors.
*DO NOT use prior decisions of the US Tax Court to substantiate your deductions for marketability, control, or liquidity. IRS wants primary research, not meta-research. You cannot, for example, reason that in Berg v. Commissioner, the IRS accepted a 35% discount, therefore the discount for your subject portion must be similar. IRS and the tax court will reject it out of hand.
*According to one very experienced partial-interest appraiser on another forum, there is no such thing as a majority interest in land. If you own 99.5% of a tract, and I acquire a 0.5% undivided interest, then the only thing you can do with that land (without my permission) is to sell it. If you put cows on it, I'll shoot them. Every blade of grass they eat is 0.5% mine. Want to sell your 99.5%? I'll offer $0.20 on the dollar for it. Too low? OK, then, make that $0.10 on the dollar. (Just how good are comparable sales in this situation?)
There are lots more things, and I can't think of all of them. Somebody else add to this.
