@Katherine S.
I'm no attorney, if you have legal concerns over the addendum, you should consult a lawyer.
Here's my quick layman's take as If I were faced with the situation...
The document looks kludged together; a whole bunch of neat concepts gathered from multiple sources covering many things that could have and should have been covered in the main contract. I think that only the Lead Paint warrants separate addendum, which would be a release.
Para:
A - no problem (NP), remains on the market until contract is ratified
B - NP, lays out dollars and dates
C - NP, though oddly worded, the concept should have been applied to the entire contract vs just A
D - NP, buyer cannot assign, forfeits deposit
E - NP, ...AS IS, buyer beware...
F - I'd strike all of this and refer to the contract itself for performance dates and remedies.
G - I hate "without limitation" language. I'd strike that and limit your exposure to only those stated potential expenses and then limit that with a "Not To Exceed... $X".
H - I'd strike this and put inspection dates and expectations in E.
I - Seller can bail for any reason and simply return the deposit... just realize that any inspection or financing expenses are sunk and gone if the seller bails. Be prepared to move quickly.
J - NP, any needed repairs are on you.
K - I'd strike everything after the first sentence. The Deposit becomes the Liquidated damages - period. If the seller wants to be able to go after the buyer for legal fees, the same should be available to the buyer. Indemnification? That's a big word, with big implications, strike all of that.
L - NP, commission demands on the seller. I'd put NA in the other blanks (this applies throughout the document).
M - Hmmm, release from all possible liens - looks like, of any type post closing. I think I'd strike that one as it can obligate you to unknown obligations of unknown costs. Alternatively, seller will correct any discovered liens within x period (use mechanics lien period). Seller won't go for it, but... see if they will indemnify buyer from post-settlement lien costs and obligations (sharp stick comment below will shed light on this one.)
N - NP, title agent, I'd put a line in there and ask them to declare this up front in order to give you the opportunity to object in case you want to.
O - NP, seller's insurance
P - I'd modify by adding , (iii) Or other remedy as may be agreed by Buyer and Seller in separate addendum. And, I'd strike the balance of that para.
Q - NP, Lead warnings
R - Aargh, penalties for delayed closing... I get it, but as a Buyer, I'd strike this, as a Seller, I'd want it. Hmm, is the Selling Broker a party to the contract? Part of the clause impacts their commission, which means they might have to agree to this Addendum as well.
S - I'd modify this to exempt incidental (damage?) that might occur in the course of inspections.
T - NP, though it's redundant, already covered under (I).
U - NP
V - Again... Indemnify... Strike this one as it applies harmless and indemnifications to all paragraphs except B, G, L, O, R & S. Unknown impact with unknown limitation. You could limit the Buyer obligations under this paragraph to $100 within 48hrs after closing, and leave it intact.
When I see language such as this, I tend to sharpen a stick and poke at it.
Personally, I'd probably scrap the contract approach entirely because of the addendum, see if you can get by with a letter of intent that specifies purchase price, closing expectations and includes access for inspections. Then I'd organize the financing and inspections, chop, chop or skip both, adjust my price and present a one or two page contract offer.
I can't believe I read that whole thing... well, I skimmed through some of it...