Like to know if I should buy another investment property or pay off the 2 remaining and my home.

Once you increase your budget, go back and remain to the ones you already touched once.

However, if you can find the owner of record, and bargain with the owner to sign over his/her remaining interest in the property to you via a quit claim deed, then you would greatly increase your position in the property against HSBC while also eliminating the need to adversely possess the property. 

for the remaining 465 floors I had considered the following:Wood, oak, first class, natural type.

The broker explained that his contact info must remain on the listing and he would forward any inquiries to me.

Main reason of crash last time was  Zero down mortgages... current market has more than 50% cash buyers and remaining are 20-25% down. they will hold on to their property.... not letting go bankrupt.Specially Hedge fund and foreign investor buying all in cash... they have deep pocket to hold on to these properties... same way it happen in Canada, Australia and India... after huge appreciation, price stay flat... no burst...

According the HUD website the loan can be used in the following ways:Eligible Activities:The extent of the rehabilitation covered by Section 203(k) insurance may range from relatively minor (though exceeding $5000 in cost) to virtual reconstruction: a home that has been demolished or will be razed as part of rehabilitation is eligible, for example, provided that the existing foundation system remains in place.

It is the only entity structure whose rules allow the business owner to take a “reasonable salary” (subject to social security and medicare) and then take the remaining profit (often as much as 50% of the remaining income) out as distributions not subject to self-employment taxes.

things don't work out, she moves out with her 2 kids, and he remains with his child, you know exactly who's in your property.Following your process and being consistent is the best way to avoid trouble!

They'll stop showing up when they get to a point where the remaining work isn't worth their while for what you're trying to (not) pay them.