If you effectuate 1031 exchange and then later contribute the replacement property into a land holding Partnership in return for an equity position would you lose your tax deferral?
It depends on how long you wait after you have completed your 1031 exchange transaction. If the contribution into the partnership is completed immediately after you complete your 1031 exchange your 1031 exchange would most likely be disqualified under an audit. If you wait at least one year (the longer the better), you should be fine.
I know partership interests do not qualify as "like kind" however, it seems the TIC strategy that has gained poplularity seems very much like an exchange for a % interest in a non-qualifying entity.
The TIC investment strategy is very different from a partnership structure. You own a direct interest in real estate when you acquire an interest in a TIC, so it is like-kind real property. When you acquire an interest in a partnership you are not acquiring a direct interest in real property, but a personal property interest (not real estate interest) in a partnership entity.
I also understand why you are not supposed to exchange property for partnership interests, but when the partnership interest that you exhanged for is a land holding partnership what is the difference?
The difference is "what" you own. When you own a partnership interest you have no ownership in real estate. You own a personal property interest in the partnership. The partnership, which is a completely separate legal entity owns the real estate. The partnership is on recorded title when the buy real estate and not the underlying partners. The partnership can structure a 1031 exchange, but not the underlying partners without some advanced planning. So, the difference is "what" you own directly.
You carry your basis with you and will pay the apporpiate capital gain taxes if and when the land holding partnership sells its assets @ some future date?
Yes, your cost basis in the partnership interest will be the deferred cost basis from the property that you contributed. There can be exceptions to this depending on the type of partnership and/or the type of contribution, so consult with your tax advisor before proceeding.