@Duc Ong for Homepath.com properties, you have to wait until the 1st look period has expired, which is 21 days.

If it was a mortgage foreclosure it would be the same as them being the highest bidder.Struck Off properties can almost always be bought from the entity at anytime for the auction amount.Once the redemption period is over the property will be sold as a "re sale" property. 

For piece of mind, we just asked them to sign a lease to cover the time period we're gone.

or do i have to keep it until the redemption period expires??

However, after a property is sold at a tax deed sale, the owner still gets a 6-month redemption period to buy back the property before you can obtain clear title.

Also saying that would you be able to get a loan on a mobile home worth around 30,000 to 50,000 dollars property I would be renting out after I lived in it for a short period of time? 

All are in need of serious repairs, and even though I paid cash for them; holding costs and inactivity over the period is beginning to give me a bit of concern.  

@Laura Costello you typically need to wait for the seasoing period of at least 6 months before refinancing.

It's the price paid for the option, the cost for the right to purchase, it's not refundable if you use up the period of time the option is granted or your ability to buy, that's what you pay for.

If the third day falls on a Saturday, Sunday, or holiday, the three-day period will not expire until the following Monday or non-holiday.