Looking for best options.

Does anyone have a sample of an assignable option contract for real estate that I can use? 

The best option is securing financing that allows the LLC to buy the new property, as commercial or portfolio lenders may accommodate this.

the majority of even my national users are looking to keep cash in reserve and as such are looking to landlords to finance that TIA as additional rent at a return premium and then that extra rent bakes off in whatever term is negotiated. 

Freddie Mac Small Balance Loan (Dauphin County, PA)Loan Purpose: Permanent Financing (Refi & Acquisition)Loan Proceeds: $1,000,000 - $7,500,000Loan Sizing: 70-75% LTV; 1.30x DCR (Small Market) Amortization: 30 YearsLoan Term: 5-10 Year Term (Fixed), 10 or 20 Years (Hybrid ARM)IO Term: Partial Term IO (70-75% LTV; 1.30x DCR); Full Term IO (60% LTV; 1.45x DCR)(Small)Rate Types: Fixed & Hybrid ARMRate (Est): 6.10%-6.60% (Assumes Mission Driven)Rate Lock: Rate Lock @ ApplicationNon-Recourse: Non-Recourse w/ “Bad Boy” CarveoutsPrepayment: Standard - Greater of YM or 1.00%Flexible Prepay: Flexible Options – Stepdown & Extended Open/Par PeriodsRate Buydowns: Yes – Rate Buydowns Available Up to 2.00%Assumable: Yes – Assumable LoanCash Out Refi: Yes – Cash Out Refi OKFannie Mae Small Loan (Dauphin County, PA)Loan Purpose: Permanent Financing (Refi & Acquisition) Loan Proceeds: $1,000,000 - $9,000,000Loan Sizing: 80% LTV; 1.25x DCR (Nationwide Market)Amortization: 30 YearsLoan Term: 5-30 Year TermIO Term (PTIO): Partial Term IO @ 80% LTV; 1.25x DCR IO Term (FTIO): Full Term IO @ 65% LTV; 1.35x DCR Rate Type: Fixed RateRate Lock: Rate Lock @ Loan CommitmentRate Structure: Treasury Yield + SpreadRate (Est.): 6.50%-6.75% (Assumes Mission Driven)Non-Recourse: Non-Recourse w/ “Bad Boy” CarveoutsPrepayment: Yield Maintenance; 1.00%; 3 Mos Open @ ParFlexible Prepay: Flexible Prepayment Options Available Escrows: Taxes, Insurance, Replacement ReservesRate Buydowns: Yes - Rate Buydowns Available Up to (1.25%-2.00%)Assumable: Yes – Assumable Loan Cash Out Refi: Yes – Cash Out Refi OK

I'm exploring options to purchase a new home as a primary residence within a 3 hour drive of Houston George Bush Intl Airport (IAH) with a USDA loan that I could turn into an Airbnb to rent out when I am not there because I spend a lot of time overseas.

If you're still in college and working with an FHA loan, a duplex can be a solid option.

This is a creative extra.

@Rene Hosman all good options! 

Lease options, and there are a variety of types of lease options, can be a good starting strategy for many aspiring investors.