When wholesaling vacant residential land (city lots or larger residential parcel in rural areas) how long is the due diligence period?

Be careful following the advice of strangers on the information superhighway.My apologies, you are correct on Familial status meaning pregnancy/children, I was indeed thinking more of marital status.

On the other hand, the midwife or pregnancy nurse counsels the pregnant woman.

@Jeff Nash, noted the two year period. 

Zillow tracks all listings for all periods.

@Venka Pulla It’s frustrating when a property manager isn’t meeting expectations, but transitioning to a new property manager is typically straightforward if you follow a few steps:Review the Management Agreement: Carefully read your current Property Management Agreement (PMA) to understand the termination process, including any required notice period.

The biggest question you need to ask yourself is if you are doing this to afford a property you otherwise couldn’t afford or to save money period, that will lead to very different conclusions about where/if to buy. 

Were they all completed within the same 12-month period, or did it take longer?

During this 24-month period, the property must be rented to another person at a fair market rental value.After the 24 month period your sibling could convert it into a primary residence.

If it is a credit/equity line, you could provide a lender letter that the funds are available immediately for funding - and cured any recission period.