My mother in law (honestly the best MIL ever, not sure how I got so lucky) Wants to move out of her 40 year old 2k sf home on three acres in the suburbs, and buy a 3k sq ft new home on 1/3 acre about a block away. The new house will likely cost her 175K (originally sold for 250k) her old house will likely appraise for 175k (only because of the land) but should rent for over 1k per month maybe more certainly not less. We are considering paying cash for the new house and renting her "old" house. or, getting a heloc against the "old" house to buy the new and renting the old to cover the payments Or, getting a traditional loan for the new and renting the old. My MIL is 59 and doesnt need money, but a little extra cash she would not mind having to spend on my nieces and nephews. She is frugal but lives well, still works and is not planning to retire for at least five years. If there is any other info that would matter please lask. Any suggestions? Thanks for any info you guys have.