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Top tax-sale deals in Sullivan County, NY

Live tax-deed & tax-lien properties, ranked by a 0–100 deal score with surviving liens flagged.

Previewing 12 of 126 live Sullivan County deals · scored 0–100 The score is a triage signal: it condenses value signals, lien risk and auction status — high scores earn a closer look first; a low score usually means the homework found a real flag. · updated daily from county records · showing upcoming / live sales
Pre-Auction
256 Lake Country Ln, Town of Tusten, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$95,529
Score: 37
Pre-Auction
822 Sackett Lake Rd, Town of Thompson, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$124,384
Score: 37
Pre-Auction
12 Avon St, Town of Thompson, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$555,172
Score: 37
Pre-Auction
29 Rock Ridge Dr, Town of Thompson, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$236,700
Score: 37
Pre-Auction
47 Lake View Dr, Town of Thompson, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$336,946
Score: 37
Pre-Auction
8 Smith St, Village of Monticello, Town of Thompson, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$155,172
Score: 37
Pre-Auction
25 Railroad Ave, Town of Rockland, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$593,900
Score: 37
Pre-Auction
46 Island Rd, Town of Neversink, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$124,400
Score: 37
Pre-Auction
19 Eagles Nest Rd, Town of Mamakating, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$619,700
Score: 37
Pre-Auction
37 Old Westbrookville Rd, Town of Mamakating, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$135,900
Score: 37
Pre-Auction
526 Mamakating Rd, Town of Mamakating, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$8,800
Score: 37
Pre-Auction
23-35 Locust Trl, Town of Mamakating, NY
Sullivan County, NY
Auction date2026-09-16
Opening Bid$100
Est. market value$141,500
Score: 37
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Unlock all 520 New York tax-sale deals.

Previewing 12 of 126 Sullivan County deals — 520 in New York altogether.

Next New York auction: August 19 · live deals in 4 New York counties

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Data from public county records and may be incomplete or out of date — always verify on the county's official site before bidding. Scores and lien flags are research tools to support your own due diligence, not legal, tax, or investment advice. DeedFlex makes no guarantee of accuracy or of any investment outcome.

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