@Greg H.If I were to purchase a HUD home during the owner-occupant period (to use as my primary residence) would they be more likely to accept a net to HUD lower than 88% of asking? 

I bought it for 600k in 2002, and lived in it as my primary residence.

Any investors doing a STR out of your primary residence?

Florence is the closest coastal town from my primary residence near Eugene.

Rent by room with all utilities included for $700-900 per room and $1000-1200 for the primary. ($3800-4800)Fully furnished rental. 

And a townhome as my primary residence. 

I'm currently house hacking (renting rooms) my current primary residence which is a single family home and has a mortgage.

They can do HELOCs down to 640 for primary homes and 680 for investment properties, combined loan to value (CLTV) are up to 85% for cash out for primary homes and up to 70% for investment properties (max CLTV depends on credit score).HELOC maximum line amounts up to $400,000 for primary homes and $250,000 for investment properties (maximum loan to value (LTV) varies based on credit score). 

Question, can i use HELOC from primary residence to buy land somewhere else and be able to deduct interest that I pay on HELOC?

Taxes wise I have opened up a high yield savings account and putting money into it in case I do end up owing taxes next year, but what do I need to be saving as far as forms, I don't have the tenants on a lease yet since this is my primary on the mortgage, but I am giving them receipts when they pay rent every month and keeping those saved.