Hi @Annie Levan. Congrats on starting your real estate investing career! Here are my thoughts on this.
It is possible to do a rehab like this in one month if you are very involved with hiring and managing the people doing the work and you are able to keep things moving. Or it could also be possible if you have someone like a general contractor lined up that can start and manage the work right when you close on the house. However, I think it would be good to assume the entire process (from close to close) could take up to 6 months. With contractors and other trades people being so busy right now, you could be looking at long lead times to get people in there. In addition, as was previously mentioned, things have a tendency to go wrong during projects like this which could result in delays.
Regarding the current market in Sacramento, things have slowed a bit in the last couple months. That’s not to say that a nice, well priced house won’t sell quickly and for top dollar. But overall we’re seeing more houses sit on the market for longer and we’re also seeing more price reductions.
For the reasons described above, and with $2,000 per month for holding costs, I would definitely assume it will take more than 2 months total. I suggest assuming 4 - 6 months to be safe.
While your holding costs and total project time are important factors, your rehab numbers and ARV are even more important. As others have mentioned, I completely agree that it is best to have a contractor that you trust view the house with you and give you realistic numbers. Regarding your ARV, it will certainly depend on similar and recent comps, especially considering what's been going on in the market recently. If you'd like me to send you some comps, please PM the address to me and I'd be happy to send some comps and give you my input.
Please let me know if you have any questions or need any additional info. Best of luck!