How many racks and/or cages are we talking about ? How much space would they take up in someone's room ?

Perhaps one of those private dog/cat boarding places (individuals with insurance, that offer their home for boarding) might be willing to put up the racks in some room? For a fee, of course. Plus they would have to be ok with you to come check on the snakes and feed them. But you never know, somebody might not mind to do that for a month or two?

Do you have a local reptile club? Someone there might be willing to help out, but then you risk possible transfer of mites or disease

How is the market for homes in your area ? Strong ? Rather weak ? Is your home one of the ones that sell rather easy, or one that is a bit more challenging (needs reno, far out, etc)

If your market is soft and selling homes is challenging, then you should do EVERYTHING to make your house more presentable. Unfortunately, that means it would be better if the snakes were gone. It starts getting hard for us to imagine but there will be MANY people that wouldn't even step foot in your home knowing it has a bunch of snakes inside. They will imagine loose snakes hiding somewhere, snakes in walls, etc etc.

The reason I had sold my large collection at one time was because of a re-location. We were in a VERY soft market. The type of house we had, there were hundreds if not more at the same general price point. We too had to sell before buying a new home. The new home was in a strong market, of course, so another challenge for us. The move itself was a big one. We had NO idea how long the house would be on the market, we estimated at the least for a few months. We had no idea how long after that until we would find a new home. Again, estimated a few months. We weren't sure where we would stay meanwhile, but it would have to be temporary housing which was difficult even just with the dogs we had.

If only we knew... We worked HARD at making our home welcoming. It was already very nice, because that is what "I" like, but before selling I made sure everything was perfect. The yard looked immaculate, clean. Added a couple more outdoor seating areas. Everything looked great. Roof was cleaned from the dark stuff that grows on roofs in the south. Inside, it was made to feel like "coming home". Welcoming, comfortable, immaculately clean and I always had a Yankee candle burning in one of the "homey" scents, like baking goods Wouldn't you know it, we had 2 offers in one week, and the third person literally walked in, went into the kitchen, living room and addition, looked out the window into the yard and said "I take it". Like he was buying a table or something, LOL. FULL ASKING PRICE. All he asked was to keep our washer and dryer and fridge. I already had plans on replacing them because I didn't like them. Full asking price was about unheard of in our market.

Not only that, but he let me stay in the house, rent free, for another month so my daughter could finish school!! During this month we found the perfect house at our new location. It all went so perfect and smooth, I tend to think my grandma helped out a bit from heaven. She had just passed away and she was so excited to come visit us at a new home (She still traveled from Germany at 80 years old, loved the US).

Long story short, if only I had known, I could have found somewhere for the snakes for one month probably. But we were looking at having to place them for several months at 2 different locations, with a big move and a couple small ones in between.

I'm not telling you to sell your snakes. If you think you can get this done in a couple of months, try hard to find somewhere to put your snakes during this time. Selling homes can be challenging unless you are in a strong market. And snakes in the house can really pose a problem. Some agents might even have a issue with that. Once your house is on the market for a while, it tends to sit, despite price being lowered. You have to come in as strong as you can, have everything as perfect as possible.

Covering racks with sheets would make me nervous, too. Usually, the seller isn't at the home during the viewing. And the agent isn't always right next to the buyer while they spread out and tour the home. Many buyers have a habit of opening every drawer and cabinet they find. Certainly if they find a cabinet with drawers that were hidden under a sheet. IF you keep the snakes in the house, I would make sure to give full disclosure and to make sure the agent tells people not to open the racks. If someone has no idea what is in it and opens the tub...and a curious or hungry snake pops up, not good.