Those are people who have cash/credit and will lend to you if you have a good deal locked up. 

A business line of credit through your LLC protects personal assets, builds business credit, and may allow interest deductions, but it might be harder to secure for a new LLC.

Quote from @Daron Williams: I just invested in a tax deed here in texas it was a beautiful lot right on lake sam rayburn. i have it on the market for sale the only problem is you have to have two lots to build on.. i found the person that owns the lot to the right of me and there willing to possibly sale there lot the only problem is i dont have the money or the credit  to purchase it.

If your property is residential single-family owner-occupied in a good area, the buyer has good credit, made a good down payment, and twelve or more on-time payments have been made, you'll be in the lower range.Note buyers, just like lenders, won't go above a certain loan-to-value (LTV) ratio.

Long wait but I got a lot of upgrades for a very low price.

It may be too late.yup stop payment.. also for future reference if you cant pay cash for these kind of educational events don't do it.how are you going to do business if you have to charge this to even get started.. this is the very thing that really bugs me about the real estate education sector in the US>. talking people to go into credit card debt when they know full well only 10% or less of folks that try this or any kind of wholesaling / flipping/ notes / lending etc will do anything .. and especially if you have no capital.

Focus on smaller single-family homes, condos with low HOA fees, or multi-family properties in these regions, and build a reliable local team of agents, property managers, and other professionals to ensure a smooth investing experience.

Here are some general guidelines: Lien Position1st Position LienEquityMinimum Down Payment of 20-25% (a 30% equity to sale price is preferred)Down Payment made in certified funds and not borrowedMaximum Funding of 70% ITV (Investment to Value)SeasoningMinimum of two monthly payments already made12 months or more preferredPayer CreditCredit Score of 650 or higherNo major derogatory trade lines (No 90-180+ days delinquent, foreclosure, repossession, bankruptcy, etc.)No decline in credit since purchase of businessTermsPrefer 60 months or lessMaximum of 72 monthsNo Balloon Payment preferredCash FlowBusiness has positive cash flow1.25 debt service coverage ratio preferred.DocumentationPersonal guarantee from a creditworthy individualStandard documents including Note, Security Agreement, and UCC-1 filing.Tax Returns on the business that substantiate profit and loss statements.OtherPayment history current and verifiablePayer Interview indicating buyer is satisfied with business and comfortable making paymentsMotivation for selling the note is not a result of a deteriorating businessConsideration of high risk businesses or geographic areasIn these situations, sometimes a partial is a better option. 

Like you said, your maintenance should be very low on BTR.

Also, what are some other low cost amenities that I can add to my STR that will yield a higher ROI?