| Business | Phone |
| Abc Realty 544 Broadway # 4, Monticello 12701 | (845) 583-4222 |
| Abc Realty Assoc 544 Broadway, Monticello 12701 | (845) 794-4222 |
| Belgard Realty 80 Jefferson St, Monticello 12701 | (845) 794-2400 |
| Century 21 Country Realty 30 Forestburgh Rd, Monticello 12701 | (845) 791-5280 |
| Cohen Realty 20 Anawana Rd, Monticello 12701 | (845) 794-7171 |
| Elar Development 31 Rock Ridge Ave, Monticello 12701 | (845) 794-7276 |
| John Girrbach 188 Broadway, Monticello 12701 | (845) 794-2037 |
| Gitlin Realty 4 Emily St, Monticello 12701 | (845) 794-7800 |
| Kaaterskill Realty 444 Broadway # 2, Monticello 12701 | (845) 794-7000 |
| Monticello Real Estate 54 Pleasant St, Monticello 12701 | (845) 794-5858 |
| Multiple Listing Svc 19 Prince St, Monticello 12701 | (845) 794-2735 |
| Myrna Ginsberg Real Estate 246 E Broadway, Monticello 12701 | (845) 791-1026 |
| Oscar Pavloff & Assoc 304 E Broadway, Monticello 12701 | (845) 794-3720 |
| Paris Realty & Assoc 151 E Broadway, Monticello 12701 | (845) 796-2005 |
| Penny Wise Properties 539 Broadway, Monticello 12701 | (845) 796-1985 |
| Prudential Peters Realty 6 Hamilton Avenue, Monticello 12701 | (845) 794-1766 |
| R M Buckles Realty 119 Forestburgh Rd, Monticello 12701 | (845) 794-8331 |
| Realty Executives 70 Forestburgh Rd, Monticello 12701 | (845) 791-4700 |
| Resort Realty 368 E Broadway, Monticello 12701 | (845) 791-5945 |
| Rieber Realty Inc 390 Broadway, Monticello 12701 | (845) 794-0211 |
| S K Realty 36 Liberty St, Monticello 12701 | (845) 794-3366 |
| Sullivan County Bd Of Realtors 504 Broadway, Monticello 12701 | (845) 794-2735 |
| Sullivan Properties 48 Pleasant St, Monticello 12701 | (845) 794-1977 |
| Upcountry Realty Corp 18 Prince St, Monticello 12701 | (845) 796-4100 |
| Yeager Realty Assocs 136 Jefferson St, Monticello 12701 | (845) 794-6333 |
| Makovic Homes 411 Route 17B, Monticello 12701 | (845) 796-4663 |